Have you ever gotten more than one NFL game on a network on cable?
I assume you mean "at the same time" because if you don't then it happens constantly. Where I live I get 2 CBS & 2 FOX stations and there have been weeks that I got 2 different games on CBS...but not same time
But if you mean same time then it still happens all the time. All you need is an area with multiple CBS or FOX affiliates on cable and depending on location the odds are pretty decent that it will happen
There are places in Northern Iowa that get KCCI (Des Moines) and KEYC (Mankato, MN) or KMEG(Sioux City, IA) and you'll have 2 different games same network same time
Estherville, IA is a great example. They get KMEG & KEYC on cable. Last year there were 7 examples of different games same time on CBS
-week 7 late. KMEG had Denver/Chargers, KEYC had Cincy/Pittsburgh
-week 8 KMEG Oak/Buffalo, KEYC Chargers/Pats
-week 11 KMEG KC/NYG, KEYC Packers/Baltimore
-week 12 KMEG Buf/KC, KEYC Miami/Pats
-week 13 KMEG KC/NYJ, KEYC Bears/San Fran
-week 16 KMEG Denver/Wash, KEYC Buff/NE
-week 17 late KMEG KC/Denver, KEYC Jax/TN
I'm sure there are a boatload of areas where this common. Heck even Jonesboro, Arkansas has multiple weeks of multiple CBS games due to havinmg their own CBS (which follows KC games) and WREG Memphis which does Titans games