The issue with "buy NBC" or "buy CBS" is that I don't care at all about networks. I care about particular shows. If I could pay $1/mo each for 20 different shows, I'd be fine with that.
If all you care about is a single show, buy the show on iTunes. Each episode costs $3, or you can buy the whole season for cheaper (seasons are usually around $30, though it depends on how many episodes are in the season).
If all you care about is a single show, buy the show on iTunes. Each episode costs $3, or you can buy the whole season for cheaper (seasons are usually around $30, though it depends on how many episodes are in the season).