Major things to watch out for:
- 2 year contract with directv with an early termination fee. Probably not with the cable option
- Directv has more channels and more sports
- You might get double and triple plays with cable from internet, phone, television, etc. Not on directv unless you do billing through some 3rd party that bundles directv
- Directv customer support isnt as good as it used to be and you sometimes have to call 3 or 4 times to get something done
- Read the directv contracts carefully and make sure you understand them, because they have an "F" rating with the BBB, primarily for stickling customers about what was on page 9, paragraph 3, section M.
- Directv may not have all of your local channels, while cable probably will
- The directv DVR, for a heavy dvr user, has some performance issues and some things that dont work well or work like you'd expect, on the cable end you can use the cable company's dvr (which usually stink as well) or use a tivo. At least its more than one option
- Directv likes to stick premium channel and pay per view stuff up your nose on every occasion. Even if you dont subscribe to the premium channels and arent interested in pay per views, when searching for shows or autorecording keywords on your dvr, you'll have to flip through 30 pages of pay per views and stuff on channels you dont get. It makes the search function rather useless in my opinion
- Reliability wise, I had great reliability with my directv receivers and reception in the SD days. Since getting the HD dish and HD DVR equipment, I get a lot more rain fade and even lose signal on real cloudy days. I have perfect line of sight and perfect dish alignment, and great brand new cabling, so thats not the problem. Having had cable a few years ago and being able to compare that to current directv reliability, I think they're about even.
- System control at directv has been a bit problematic for the last two years. A couple of times they've sent out new software releases before their time because they were being driven by an advertised date, hosed some people up with bugs and then had to do emergency releases soon after to fix them. A couple of times they've also sent bad guide data and blown up everyones dvr's for 4-6 hours. The release control and error checking need some work.
- Directv's HD picture quality seems a little better to me than what I've seen on cable, but I think after watching either one exclusively for a couple of days, you wont notice.
I think this is about the time someone puts on the Dr. McCoy and yells "dammit cfb! its only tv!!"