An antenna has served me well. I have a Tablo that puts the broadcast on my network where I can watch off connected devices. It has a DVR, and there are programs that allow you to take the shows off the DVR and move them to wherever you'd like. I also use commercial removing software before putting the show on a Plex server.

Everything I paid for up front. The only monthly subscription available is the guide data to the Tablo. I bought the lifetime option when I got the device. It's more than paid for itself already.

The only issue is that there are fewer and fewer quality suites in standard broadcast TV. I've got a great catalogue of NFL games though.