Quatermass and the Pit - Season 1 - Eps 4: The Enchanted
Following the drilling attempt, a hole has somehow opened up in the wall which allows Quatermass and the others access to the interior chamber. There they find the remains of insect-like aliens resembling giant three-legged locusts, with stubby antennae on their heads giving the impression of horns. As Quatermass and Roney examine the remains, they theorise that the aliens might have come from a nearby planet which was habitable five million years ago — Mars.
About Quatermass and the Pit

Title: Quatermass and the Pit
First Air Date: 1958-12-22
Last Air Date: 1959-01-26
Status: Ended
Rating: 6.9/10 (from 19 votes)
Language: EN
Seasons: 1
Total Episodes: 6
Network: BBC One
Genres: Drama, Sci-Fi & Fantasy, Mystery
Production Companies: BBC
Synopsis
A team of scientists search for the origin and purpose of a mysterious capsule found on a building site.
Cast

André Morell
Professor Bernard Quatermass

Cec Linder
Dr. Matthew Roney

John Stratton
Captain Potter

Christine Finn
Barbara Judd

Anthony Bushell
Colonel James Breen