You only need to worry about the digital TV transition on 2/17/2009 if you receive your signal over the air through an antenna.  To continue watching TV after this date you will need a converter box between your antenna and TV.  The government will provide you with 2 free converter boxes. Dtv2009.gov.

[podcast]https://goldfayn.com/audio/Technology%20Tailor_11-14-08.mp3[/podcast]