Sierra releases the computer role playing game game Ultima II: Revenge Of The Enchantress for the Apple II home computer. Written by Richard “Lord British” Garriott, this is the second volume of the best-selling Ultima series of RPGs, and the first to introduce space travel and science fiction elements into the games’ sword-and-sorcery fantasy setting.

ITV airs the 33rd episode of P.J. Hammond’s science fiction series Sapphire & Steel, starring David McCallum and Joanna Lumley. David Collings and Edward de Souza guest star.
Coleco releases the LED matrix-driven tabletop version of
Data East’s food-obsessed arcade game
Coleco releases the
With the words “Prepare to joust, buzzard bait!”, Williams Electronics launches an arcade sleeper hit built on unlikely juxtapositions (medieval knights, jousting with lances, riding on ostriches, over a lake of lava, stalked by pterodactyls). 
The
The first episode of the science fiction series The Powers Of Matthew Star premieres on NBC, starring Peter Barton and Louis Gossett Jr. Judson Scott (The Phoenix, V) and Susan Ruttan (L.A. Law) guest star.
NBC airs the 14th episode of the Marvel animated series Spider-Man And His Amazing Friends, starring the voices of Dan Gilvezan, Kathy Garver, and Frank Welker. This is the premiere of the very brief second season, which tells each character’s origin story.
After a long development process (during which it was briefly known as “Atari Video System X”),
Universal (a video game manufacturer unrelated to the Hollywood studio of the same name) introduces a cute arcade action game,
Activision releases the
Sega releases the arcade game 
Sega releases the arcade game
The Odyssey² video game console gets its first major hardware upgrade in the form of the add-on voice synthesizer module, marketed as the Voice of Odyssey². With the
Desperately trying to keep its coin-op games fresh, Sega releases the arcade game conversion kit
NBC premieres the first episode of James D. Parriott’s time travel series Voyagers!, starring Jon-Erik Hexum and Meeno Peluce. Ed Begley Jr. guest stars as Wilbur Wright in the pilot episode, written and directed by Parriott.
Mattel Electronics releases the
Mattel Electronics releases the
Pinball maker D. Gottlieb & Co., via its Mylstar video game division, graces arcades with the qute qreatures of