will my vcr/dvd/combo work with DTV?


Hi ,
My Question is ,will my VCR/DVD/Combo work with my DTV Converter box?
I want to copy my home vcr movies to my disk ,record them to my disk.
It worked before .
Do i have to program my tv to work with the vcr/dvd/combo ,plus to work with my DTV also?
I HAVE A Magnavox converter box, a Samsung wide screen tv, that says hd, it was bought in late 2003,and a RCA vcr/dvd/combo with other stuff on it like mp3player,etc.
Anyone know how to set it up?
I have my dtv already set up just need help with the other.
Thanks for any help. :)