First, a warning that I have never tried DIRECTV, so I can't vouch for the quality or customer service. However, this does appear to be the largest bonus offer I've ever seen for signing up with DIRECTV (or any other cable or satellite TV option for that matter). You might not want to immediately ditch your current provider if you're happy with them right now, but if you are thinking about switching, then this is a great promotion to take advantage of.
Right now, earn 25,000 AAdvantage bonus miles by signing up for a two-year contract with DIRECTV. For just $29.99/month for the first 12 months, you get over 140 channels, including three free months of HBO, Starz, Showtime, and Cinemax. For the final 12 months, the rate goes up to $54.99/month. In addition, you'll get HD and HD DVR for free. Installation is free, there are no start-up costs, and you will also save an extra $20 by signing up online. There are a number of other packages at a range of prices you can choose from. Note that this offer is for new customers only, and it ends on July 18, 2012.
I'm actually seriously contemplating switching over to DIRECTV since I'm paying an arm and a leg right now for Comcast cable service. Check out the promotion website below for complete details: