Always look at VCR on TV when setting up to record. Make sure are seeing the input to VCR and not just the channel you want to record on the house system. Label tapes clearly and concisely at time of recording. Include copyright info on label. Make sure tape cannot come off in machine and jam transport mechanism.
Store tapes away from heat and direct sun light.
Keep magnets away from tapes. Magnets will erase material on tape.