Back in the mid-to-late 70’s There was this advertisement for what I think was a horror/sci-fi anthology series. The scene starts out with an old man walking on a beach. He comes across this large shell-like thing that was washed upon the shore about the size of a car. Curious, he examines the thing at close proximity, then all of a sudden an arm-or-toungue-like projection comes out and grabs him. The old man gets pulled inside as he fights and screams to no avail. Scary as hell!!
This was just the commercial for the show and it scared me. To this day I can’t remember the name of the show. It didn’t have a long run, maybe one season if that. It might have been a British show that was syndicated to local U.S. broadcasters, or one of those Anglo-American ITC productions.
By the way, I think I did see one of the episodes, it was about a man lost in the desert; he meets a guy on horseback and asks for help, or a way out, but then the guy says something like, “Sorry but you don’t know me well”. then he disappears as if he was just a mirage.
This has been a lifelong quest to see this again!