TV Advertising in a Time of War

After weeks of a military build up, the United States and Israel launched a coordinated attack against Iran on February 28, 2026. The days since have seen the conflict escalate, with retaliatory missile and drone strikes across the region — not to mention growing questions about what this all means for America. 

In moments like these, viewers often flock to cable news networks for updates, analysis and breaking developments. Below, we dive into the first few days of the Iran conflict with an eye toward how the TV advertising landscape changed across the major cable news networks (Fox News, CNN, MSNOW and CNBC), using data from iSpot. 

Fewer ad time, but more reach

Advertising time declined across the major cable news networks in the war’s opening days (Feb. 28 - Mar. 1), which makes sense since you can imagine there would be much to discuss and many commentators weighing in, leaving less time for ad breaks. 

For all of the cable news networks, ad time fell between 9% and 28% compared with the previous weekend. Fox News saw the biggest ad time decrease, with equivalized units down 28%, while MSNOW and CNBC were both down 17% and CNN was down 9% week-over-week. 

That being said, while ad time shrank, audience reach actually grew across each of the networks except CNBC, pointing to increased viewership as the conflict kicked off. CNN saw the biggest increase (+70% vs. the previous weekend), followed by Fox News (+38%) and MSNOW (+17%). CNBC impressions declined by 63% week-over-week. 

Expanding the date range to include the first four days of war (Feb. 28 through Mar. 3), these trends remain but with some variations: 

• Advertising time decreased across all the networks between 11% and 17% compared with the previous Saturday-Tuesday. 
• MSNOW saw the biggest ad time decrease, with equivalized units down 17% week-over-week. Ad time on Fox News and CNBC both was down 14% and CNN was down 11%.
• Looking at impressions, CNN saw the biggest increase (+42%), followed by Fox News (+23%) and MSNOW (+2%). CNBC impressions declined by 30%.

A consistent presence from pharma

Looking at which industries were advertising during the first weekend of the conflict, pharmaceutical and medical brands accounted for the largest share of ad time across all four networks, and that share increased on most channels compared with the prior weekend:

• CNN: 38% → 42%
• MSNOW: 40% → 45%
• CNBC: 21% → 25%
• Fox News: flat at 22%

Pharma brands also appeared frequently among the top advertisers on several networks. On CNN, for example, ads from Rinvoq (UC/Crohn’s) and Botox (Migraine) ranked among the top by equivalized units during the weekend, alongside nonprofit advertisers like St. Jude Children’s Research Hospital. 

A fast-moving advertising environment

Taken together, the data highlights how quickly the TV advertising landscape can shift when major global events dominate the news cycle. In this case, cable news networks saw less advertising time but more audience reach, while the mix of advertisers varied widely by industry and channel.