This picture of horror legend Vincent Price being bitten by “vampire” Kermit the Frog is from a scene in episode 119 of The Muppet Show of which he was the special guest.
The episode first aired on the 31st January 1977 (NYC), but we didn’t get it over here in the UK till the 23rd April.
It was the first episode to have all of the sketches centre around a common theme, in this case “the strange, the weird, and the scary.”
What a great sport!
You can watch the one minute scene on YouTube here.