I own several dvd players,vcr's and bluray players. The other day I put a vhs tape into one of my dvd/ vcr combos and only got audio. Picture was snow. Tried new av cables. Didn't help. I switched to a vcr only unit I own. Same problem. Tried another dvd/ vcr that I own. Same problem. A dvd played fine,but the tapes would not. I tried several different tapes including one I had just watched a week ago. All had same problem. I decided to switch to a different television ( both tv sets are old analog sets, not digital ). Still,just audio on the vhs tapes. The only part of the equation I never altered was the outlet. Both televisions and all the players I plugged into the same outlet.
If anyone can explain what might be happening,please let me know.