help! i'm tech challenged!! it took me 15 minutes to get to this posting area!! in my first ever message board experience, i've been trying to get tips on an a/b switch hookup. i have a new dvd/vcr combo -- want to split signal so i can watch and record different channels at same time. Cablevision io service in nassau county on long island, if that matters. they gave me a diagram that(after splitter) runs one side into "A" and the other side into cable box, out to dvd/vcr, out to "B" switch. middle of a/b into tv. when i set it up that way, vcr recorded whatever channels i was changing... i could only see what was on channel 3.. and couldn't change tv channels - only cable ones. I'm sure this is remedial for all of you... but i have so utterly confused myself.. I can't see clearly anymore. as the dvd unit is new, i'm not sure if the wiring is wrong, or i have a wrong setting on the remote!! ready to pull my hair out.