The BBC Archive has a 1985 piece on Infocom. “Fred Harris goes behind the scenes at Boston software company Infocom. The developer has enjoyed great success with its line of text adventure games–the likes of Zork, Planetfall, Enchanter, and The Hitchhiker’s Guide to the Galaxy–which eschew graphics in favour of a simple text display, and arcade gameplay in favour of what the company calls ‘interactive fiction.’

Game designer Dave Liebling–one of Infocom’s founder members–is currently putting the finishing touches to a new game called Spellbreaker. He explains the processes that go in to making a good text-adventure game.”

Watch here.