I have a question about the digital transition

It depends on your TV really. If it is a newer model that can accept digital signals you are fine. If it is older and only accepts analog signals, you may have to get the set top box to get it. Read this:
http://www.cnn.com/2006/TECH/07/13/digital.tv/index.html

http://dtvfacts.com/converter-box-coupons/

http://www.dtv.gov/

The fcc will send up to two $40 coupons for a converter.
https://www.dtv2009.gov/
Hope this helps.

 

This leaves the low income families $hit out of luck.