It depends entirely on what types of connections each supports. The most basic is probably coaxial cable. If they both support RCA plugs, that's good. You could also use an S-video cable if they both have it. Assuming this is a flat screen older television? A lot of the new high definition sets have plugs the VCR won't use. You could run it through an RF filter and have that go to the television with a coaxial or RCA cable. Put your older devices into the switch.

I haven't tried running the VCR through to the new HD TV. And I upgraded my DVD to a Blu-Ray that plays Blu-Ray disks and will also up-convert standard DVDs to fill the screen on the new TV. With every new wave of technology, one learns more and more about adapters. :)

SRS