Will NASCAR’s Cook Out 400 Air In 4K Today?

By Phillip Swann
The TV Answer Man – Buy Me a Coffee!

TV Answer Man, will there be any racing in 4K this weekend? – Gene, Pittsburgh.

Gene, I have good news for you. Fox today (March 29, 2026) will offer an upscaled 4K feed of the Cook Out 400 from the Martinsville Speedway in Martinsville, Virginia.

The broadcast, which will be simulcast in HD on FS1, will start at 3:30 p.m. ET on Sunday. Denny Hamlin and Ryan Blaney are among the favorites to win.

How Can You Watch Fox’s 4K Broadcasts?
Fox 4K events can be seen in the format on the Fox One app by logging in with your TV Everywhere user name and password from your pay TV provider. (You can also watch the game in 4K with a separate subscription to Fox One which costs $19.99 a month.)

The pay TV services that normally offer Fox games in 4K on special 4K channels are DIRECTV, Dish, Sling TV, Comcast, Verizon, Optimum, YouTube TV, Spectrum TV (Xumo, Apple TV 4K, Roku 4K devices only) and FuboTV. (In FuboTV markets where the Fox affiliate is provided with your programming package.) Check your on-screen guide for more details.

What Are Fox’s Upscaled 4K Broadcasts?
Fox’s 4K live sports broadcasts are upscaled from 1080p HDR (High Dynamic Range). Upscaling is the process when one video format is converted to another. Fox takes the 1080p HDR signal and converts it to a 4K format. Upscaling 4K is not considered as good as native 4K, but the inclusion of HDR can offer heightened colors and vividness. ESPN also upscaled its 4K broadcasts from a 1080p HD signal.

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