So, yes, normally I refrain from sending you off-site to get access to things. However, this is just too good. From 1977, it's the radio drama Aliens in the Mind, which starred Vincent Price and Peter Cushing and was scribed by Robert ("I Wrote a Slew of Classic Dr. Who") Holmes. In fact, according to this site, it was originally meant to be a Who script. You could have Cushing and Price taking turns reading the backs of breakfast cereal boxes and it would be worthwhile, so when you pit them against telepathic mutants, it's a no-brainer.
And while we're on the subject of Peter Cushing--a very easy subject to be on--Rox sent us this excellent interview with Cushing on a show called The Human Factor. Rox figures it might be one of his last interviews, so that puts it 1992-1994 timeframe. And following that, just because we can, we have a 1979 interview with Vincent Price on The Merv Griffin Show.