How many movies have Eric Saward and John Nathan-Turner collaborated on?

They have worked on 22 movies together! Their first movie together was K-9 and Company: A Girl's Best Friend (1981) while their highest rated movie together was Doctor Who: The Caves of Androzani (1984). They have not worked together since Doctor Who: The Ultimate Foe (1986). They are most known for their science fiction films together.