You can subscribe to Barely Political via TiVoCentral online or by accessing the following menu item on your TiVo: TiVo Central -> Find Programs -> Download TV & Movies -> Barely Political.
As a side note, I would like to thank David for putting me down as his TiVo rewards referrer. If you’d like to put me down as your referrer, all you need to do is enter my email address (raianoat AT gmail DOT com) when you activate your TiVo. Thanks David. It really is appreciated!