Money's a little tight right now. But when I can, I want to get a DirecTV TiVo DVR. I know some of you don't like the TiVo, but I want it for the TiVo Suggestions and the "thumbs up" and "thumbs down" options plus I love my TiVo Roamio and wouldn't mind if it was based on old technology. I would like it to have over-the-air stations as well, but I think somebody told me an AM21 won't work with it. Now I don't think it's a big deal, but I would like to know if it can but I don't want to waste my money on something that won't work. Will it?