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CTV advertising in Canada: how the buying machinery actually works

Most explainers describe CTV from the couch. This one describes it from inside the auction — devices, ad pods, deal types, and the supply paths your dollars travel.

CTV advertising in Canada means buying video ads that play on a television screen through an internet connection — a smart TV, a streaming stick, a game console — usually through programmatic pipes rather than a broadcaster’s sales desk. That last part is what this page is about. Connected TV advertising is less a channel than a buying discipline: device ecosystems, ad pods, deal types, and a supply chain with more middlemen than most buyers realize. We’ve worked inside that supply chain — at a major CTV platform and at an SSP — and this guide explains the machinery the way we’d explain it to a client, not the way a sales deck would.

If you’re looking for the content-and-planning side — which Canadian streaming apps carry ads, how to plan against them — that lives on our companion pillar on streaming TV advertising in Canada. This page covers the plumbing underneath it.

What is CTV advertising in Canada, mechanically?

Strip away the acronyms and a CTV ad buy is this: a viewer’s TV app requests ads for a commercial break, an auction (or a pre-negotiated deal) decides which ads fill it, and your DSP reports back what it bought and for how much, in Canadian dollars.

Three terms get tangled here. OTT advertising in Canada refers to any video delivered over the internet, on any screen. CTV is the subset that lands on an actual television. Streaming TV advertising is the buyer-friendly umbrella for both. The distinction sounds pedantic until you’re reading a campaign report and realize a chunk of your “TV” impressions ran on phones.

The device layer matters more in CTV than anywhere else in digital. In Canada, the living room splits mainly across Samsung and LG smart TVs (each running its own operating system and its own ad platform), Roku, Amazon Fire TV, and Google TV — the OS on many TCL, Hisense, and Chromecast devices — plus Apple TV and game consoles. Each ecosystem controls its own home screen, its own native ad inventory, and in some cases its own data. A “CTV buy” is really a buy across several walled-ish gardens plus the open programmatic market, which is why supply-path decisions do more work here than creative rotation ever will.

Open exchange vs PMP vs programmatic guaranteed: which deal type fits?

CTV ads in Canada trade through three main deal structures, and the differences are about control and visibility as much as price.

Open exchangePrivate marketplace (PMP)Programmatic guaranteed (PG)
How it tradesOpen auction, any eligible buyerInvite-only auction via deal IDReserved inventory, fixed terms
Price discoveryAuction sets price; floors applyNegotiated floor, auction above itFixed CPM, no auction
Inventory controlLowest — you get what bids winCurated app/content listExact placements agreed upfront
TransparencyWeakest; most resellers live hereBetter; still verify the pathStrongest; direct publisher terms
Typical useScale, prospecting, testingMost Canadian CTV buysSponsorships, guaranteed reach

Our honest take: most Canadian advertisers should live in PMPs, with PG reserved for moments where delivery certainty is worth the premium, and open exchange used sparingly and audited often. A deal ID is not a guarantee of quality, though — we’ve seen PMPs stuffed with the same resold inventory as the open market, just with a nicer name on it. The deal type tells you how it trades, not what’s inside.

What do ad pods actually do to your campaign?

Broadcast TV sells commercial breaks. CTV sells ad pods — the programmatic version of a break, sliced into slots that can be auctioned individually or as a unit.

Pod logic drives three things buyers feel but rarely see:

If your CTV reporting shows healthy reach but viewers complain they saw your ad three times in ten minutes, the pod — and the number of paths you’re buying the same app through — is the first place to look.

Insider view: how a CTV ad request actually travels

This is the part we know from the inside. Inside the CTV platform we worked at, the distance between how inventory was actually assembled and how it appeared in a DSP was the single biggest source of buyer confusion — not because anyone was lying, but because every hop in the chain summarizes away detail.

Here’s the honest path of one impression:

  1. The device hits a break in the stream. With server-side ad insertion (SSAI) — the norm in premium CTV — the ad request doesn’t even come from the TV. A server stitching ads into the stream makes the request on the device’s behalf.
  2. The publisher’s ad server checks direct-sold commitments first, then sends the unfilled slots to one or more SSPs, often with pod context attached (slot position, break length, separation rules).
  3. The SSP runs its auction, soliciting bids from DSPs — where your campaign lives — and applies floors, deal IDs, and its own fees.
  4. The winning ad travels back down the same chain and gets stitched into the stream.

Two consequences fall out of this. First, SSAI is why CTV fraud looks different from web fraud: when a server makes the requests, a fraudster with a server can fabricate “TVs” at scale, complete with fake bundle IDs. Verification vendors have SSAI-specific detection, but the structural fix is buying through paths short enough to actually validate.

Second, the resale layer. When we audit the app-ads.txt files behind Canadian CTV apps, the patterns repeat: dozens of entries marked RESELLER for every DIRECT line, the same intermediary seller accounts appearing across unrelated apps, and entries that don’t reconcile with any sellers.json record. None of that is proof of fraud — but every reseller hop adds fees you can’t see and metadata loss you can’t fix. This is exactly the supply-path work our programmatic practice exists for: shorter paths, named sellers, fees you can point at.

How is CTV advertising measured — and what can’t it tell you?

Be skeptical of anyone who presents CTV measurement as solved. What you reliably get: impressions served, video completion rates (routinely very high on TV, because the ad is unskippable and the viewer may be in the kitchen), app and content signals where the publisher passes them, and IP-based geography good to roughly the city or postal region.

What you get with caveats: reach and frequency deduplicated across apps (dependent on identity graphs of varying quality), outcome measurement tied to household IP, and panel- or ACR-based attribution. Automatic content recognition — the tech in smart TVs that identifies what’s on screen — powers some of the most interesting CTV data in market, and it’s also where privacy law bites hardest.

For Canadian buyers that’s not academic. PIPEDA governs how viewing data and device identifiers can be collected and used federally, and Quebec’s Law 25 goes further, with express-consent requirements that affect any campaign targeting Quebec households on data-driven segments. If a vendor can’t explain the consent basis for their Canadian CTV segments, that’s your answer.

Who is CTV advertising in Canada actually for?

CTV rewards advertisers who want television’s screen and attention without television’s minimums: brands graduating from digital video into the living room, regional advertisers who could never buy national broadcast efficiently, and performance-minded teams who want frequency-controlled reach they can audit. Engagement on CTV is mostly the sight-sound-motion kind — completed, full-screen, unskippable views — with QR codes and household-level retargeting as the interactive layer, not clicks.

It rewards them, that is, when the buy is clean. The gap between a good and bad CTV buy in Canada is rarely the creative or the app list — it’s how many hands touch the dollar between your DSP and the screen.

People also ask

What is the difference between CTV and OTT advertising?

OTT advertising covers any video streamed over the internet, on any screen — phone, laptop, or TV. CTV advertising is the subset delivered to a television screen through a connected device or smart TV. In Canada the terms get used interchangeably, but the device distinction matters for measurement, fraud risk, and pricing.

How much does CTV advertising cost in Canada?

CTV is priced on a CPM basis in Canadian dollars, and the rate depends heavily on the deal type. Open exchange is cheapest but least controlled; programmatic guaranteed carries the highest CPMs in exchange for reserved inventory. Ask any partner to break out media cost from fees before comparing quotes.

Is CTV advertising vulnerable to fraud?

Yes. Server-side ad insertion makes CTV impressions easy to spoof at scale, because the ad request comes from a server rather than a verifiable browser. Buying through direct paths, validating app bundle IDs, checking sellers.json, and using SSAI-aware verification meaningfully reduces the risk — but no buyer should assume CTV is fraud-free.

Can you target CTV ads by location in Canada?

Yes, most commonly through IP-derived geography down to city or postal region — precise enough for regional campaigns, not for household certainty. Any targeting built on viewing data or identifiers must respect PIPEDA federally and Law 25 in Quebec, which raises the bar on consent for Quebec audiences.

Talk to someone who’s seen the other side of the auction

Marcus and Muse is an independent media agency in Ottawa, working with advertisers across Canada in English and French. We don’t take kickbacks, rebates, or reselling margin — you see every dollar, and our only incentive is that your CTV buy works. Because we’ve built and sold CTV inventory from the inside, we know which questions make a supply path flinch. If you’re planning a CTV campaign or wondering what your current one is actually buying, book a 30-minute call and bring your reporting — we’ll tell you what we’d look at first.

Aaron Foley is the principal of Marcus and Muse, an independent programmatic advertising consultancy in Ottawa. He has spent two decades inside the programmatic supply chain — including roles at Sharethrough and Samsung Ads — and founded the Ottawa Ad Club.

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