what am i doing wrong?

My converter box is hooked up through the vcr and tv watching is fine; i can watch tapes, however i'm unable to record. My tv is set to ch 3, the converter is set to the channel i'm going to record (and not changed) however the quality of what i've taped is horrible!-what else do i need to do?
it took a kid on a you tube video to let me know what i was doing wrong, at no time have i seen that i had to have the vcr set to channel 3 as well - that was my problem - now i'm taping just fine!