First off, I am use to getting by with little telescoping things, thank you very much.
Second, I haven't paid high cable prices for years and really do need a good outdoor antenna. May seem crazy but I use rabbit ears on a 73" TV along with Netflix streaming which sets me back a whopping $8 per month. I reckon an antenna suitable for 800Mhz could be attached to the same mast?
+1 on what gmclam said. Get the antenna feed outside. I just put up a Scantenna ST2......its a broad band antenna roughly 50MHz - 1300MHz coverage and the beauty is it works great and only costs about $40. Antenna comes with 50' RG-6 and an F to BNC adapter. If your TV antenna is high enough you could bolt it to the mast below the antenna. My choice of mount was a used Direct TV satallite dish eve mount and adapting a 4" section of galvanized mast to this mount after I removed the dish.......again mount was free and install was held down to a few dollars for some simple mounting hardware.