I am trying to use my dvd reccorder with my digital TV box. It seems that I cannot record another channel while watching one because the digital box is set to channel 3 and therefore, I cannot change the channel on the dvd recorder to record another channel. Any way to hook this up and use the TV box and dvd recorder simultaneously?

All you need to do is split the signal after it comes out of the Digital TV box.

Then, attach one to the TV and the other to the dvd recorder.

That should do the trick.