For those of you in the U.S. that have somehow missed the bombardment of advertising for the Digital TV conversion...
Go to DTV2009.org and apply for up to 2 $40 coupons good for the purchase of a digital TV to standard converter box. It can take a few weeks to get them so apply for them while you still can. I haven't heard anything about any expiration on the offer itself though the coupons DO expire after 90 days.
Get these coupons. Buy the box and hook it up to your standard definition Television (or even HDTV if you don't have cable or an HD antenna) and you never have to worry about missing commercials again.
Really, why else would you think they make it seem as if it would be a disaster if your T.V. went blank next year?