And Big Finish audios. I'm currently listening to Project: Lazarus, which itself is a sequel to Project: Twilight. I'm told there's a novel called Project: Valhalla that fills in some gaps between the two.

On a very related note, Colin Baker is a revelation in the audio plays (as well as in the BBV Stranger shows.) I curse John Nathan Turner yet again for hobbling him. He could've been great.