Panasonic VCR help

Could be out of mechanical alignment slightly, like loose guide posts, something bent in the tape path. Did it just happen, all of a sudden, or gradually? Make sure the pinch roller isn't shiny. May just be dirty. Clean (very gently), at the bottom of the video head drum, right at where the tape ends. Could even be bad capacitors in the power supply. What's the model, & can you post a picture? Sky.

I read your post on another site, that had more info. The "tadpoles" you see in the pix while playing back, MAY be bad video heads.