Disc 2 Select Bonus Material then Bonus Menu Plain Text. Arrow down to Back then left arrow to highlight the rabbit. Select and you will see an 11 minute animated commentary by Naylor, Grant and Bye about Polymorph.
You can also get to this via the animated menu. Wait until the the changing polymorph becomes a rabbit and cursor over or arrow down and select
Reviews: DVD Talk also has a review of
Red Dwarf Series 3 by David Blair.