Should mention here that CBS is posting the full episode at CBS.com as soon as the episode has completed airing on the west coast.
And TAR season 19 is available for purchase at I-Tunes as a "season pass" or for individual episodes Each episode will be added once it has aired, and each episode can be purchase in either SD or HD. The downloaded episode files can be viewed on the ITunes player or the current release version of the Apple Quick Time player. (It's supposed to be playable in the Windows Media Player, but I wasn't able to get that working properly for some reason.