You're watching FOX at 1:00 p.m. on a Sunday. Your neighbor three counties over is also watching FOX at 1:00 p.m. on a Sunday. You're seeing completely different games.
This isn't rare. It isn't a cable package difference or a satellite dish setting. It's the designed result of a regional broadcast system built into the structure of NFL television rights, one that divides the country into overlapping broadcast territories and assigns each market the game that the network and the NFL have determined is most relevant there.
Here's how it works.
Primary Markets and the Home Team Rule
Every NFL franchise is assigned a primary market: the metropolitan area where the team is located. Within that primary market, the team's local affiliate has a guaranteed relationship with the team's games. When the home team plays a sold-out game, it airs in the primary market. Away games air there too.
This means that if you live in the Dallas area, you will see the Cowboys game on FOX (since Dallas is an NFC city) regardless of where the Cowboys are playing that Sunday, as long as there isn't a direct conflict with another game in the same slot.
Most teams also have secondary markets, typically cities and metro areas where any part of the market falls within 75 miles of the team's stadium. These secondary markets have a weaker but real claim to the team's games and factor into how regional broadcast maps are drawn week to week.
The practical effect: the first question that determines which game airs in your market is whether a local team is playing. If they are, you almost certainly get that game. Everything else is secondary.
Conference Affiliation: NFC on FOX, AFC on CBS
The second major organizing principle is conference affiliation. Under the NFL's broadcast rights structure, FOX holds the rights to NFC games on Sunday afternoon, and CBS holds the rights to AFC games. Historically, this meant NFC teams' away games appeared on FOX and AFC teams' away games appeared on CBS, with the visiting team's conference determining the broadcast network.
This system isn't absolute. The NFL introduced "cross-flexing" in 2014, allowing a limited number of games to move from FOX to CBS or CBS to FOX regardless of conference affiliation, with two weeks' advance notice. The tool became a much bigger part of scheduling starting with the league's 2023 media rights deals, which expanded how many games can be cross-flexed each season. An NFC game that better serves CBS's regional affiliate structure in a given week can now air on CBS. But the NFC-on-FOX, AFC-on-CBS split remains the baseline, and the majority of Sunday afternoon games still follow it.
Doubleheader Sundays and the Single-Game Rule
FOX and CBS alternate having "doubleheader" Sundays throughout the season. In a doubleheader week, one network airs both the 1:00 p.m. ET early window and the 4:25 p.m. ET late window. The other network airs only one game that day.
With the NFL's 17-game schedule format, FOX and CBS each have eight doubleheader weeks during Weeks 2 through 17, and both networks air doubleheaders in Week 1 and Week 18. On non-doubleheader Sundays, one network is broadcasting two games simultaneously, one to markets in one region and a different game to markets in another, while the other is broadcasting only one game nationally or with limited regional splits.
This alternating structure is one of the reasons why the game you get on FOX can vary so dramatically from week to week, even in the same city. The doubleheader network has more games to distribute and more regional splits to manage; the single-game network has fewer choices to make.
How Game Priority Is Assigned
Not all games are created equal in the broadcast rights world. The NFL and networks classify games into tiers, informally referred to as "A," "B," and "C" games, based on expected viewership, market size, team records, and competitive stakes. A-games get the widest distribution; they're the matchups the network believes will draw the largest national or multi-regional audience. B and C games are routed to more specific regional windows where the teams involved have localized fan bases.
Markets that don't have a direct claim to either team in a given broadcast window receive the highest-tier game the network has available that doesn't conflict with other regional commitments. This is why a market in, say, Tennessee that has no NFL team might see an NFC East matchup on FOX one week and an NFC South game the next. The game sent to that market is whatever A-game isn't already spoken for by markets with primary or secondary team claims.
The Role of Local Affiliates
Despite being the entities that actually transmit the broadcast signal, local affiliates have almost no say in which game they air. The network makes the assignment, and the affiliate carries it. A local FOX station cannot choose to switch from a blowout to a more competitive game, cannot trade its assigned game for another market's assignment, and cannot elect to air a different game because local fans would prefer it.
The only real leverage affiliates have is in their relationship with their local team. A station in the primary market of an NFL franchise is guaranteed to carry that team's games, since that's part of the structure of the broadcast rights. But beyond that, game selection flows from the network and the NFL down to the affiliate, not the other way around.
Why Counties Matter
Broadcast market boundaries don't follow county lines, but county lines are what ultimately determine which feed your television receives. The Designated Market Area (DMA) system used by broadcasters divides the country into regional market zones, and your county's DMA assignment determines which local affiliates serve your household.
DMA boundaries can split counties in neighboring markets that appear to be geographically similar. A county on one side of a market boundary might be in the primary territory of one team; a county on the other side might be in the primary territory of a different team, or in a neutral market that receives the national A-game. This is why two fans who live close to each other can watch entirely different games on the same channel at the same time, and why county-level precision is necessary to actually know which game is assigned to your screen.