I picked up a cheap $29 RCA HD Antenna with a cheap $19 TV antenna rotor from Menards. Used a small left over 5' section of pipe to mount the mast to the fireplace chimney and stuck the rotor and antenna on top of that.
This thing is great! I point it at Chicago and I pick up more than 30 OTA stations (some of them duplicates.) I can turn the antenna towards Rockford Illinois, South Bend Indiana and Springfield Illinois and pick up dozens more.
Most are network stations, there's enough "Independent" or "Fox" stations in there to make it interesting enough that I can usually find something to watch. Thankfully I don't watch much TV.
Bottom line is that for less than $100 you can get a nice HD OTA antenna and a small TV rotor, cables and connectors and dump ComCRAP. I did it last year, won't look back.
Unfortunately, they're the only deal in town for high speed internet thus far (sigh, wish I could completely dump them...)
As far as high speed intenet goes, have you looked into tethering your computer to your cell phone (assuming you have a data plan with your calling plan).
It's a one time $15.95 fee.
It's what I use at home: http://junefabrics.com/index.php