Yes tjpeople, I saw the same trailer at the end of the episode, but... I dont think it is a spin off at all mate.
Yes, it mentioned the words "Dewey and Therapy" but I'm sure it said... "How many Therapy sessions will Dewey need now?" I could be totally wrong but I think im right.
Final thing, which I am 100% sure on is there is no "Dewey Therapy" show on next Sunday at 7pm...Once I saw the trailer at the end I looked through the Sky Guide to next Sunday at 7pm and it said Malcolm In The Middle... I pressed information and what is showing next Sunday at 7pm is the "Pilot" episode and then after that is the "ZOO" episode at 7.30pm.
Here is a SkyOne TV guide for Sunday 9th July 2006...
If you click on "Malcolm In The Middle" it will tell you the program sypnosis at the top of the guide... I have already clicked on the 7pm slot show...
SkyOne are now going to show every episode filmed (not in order) starting with the "Pilot" next Sunday at 7pm to kick things off.
The trailer at the end of tonights episode I think was a sort of goodbye, with Dewey drawing on the pictures of the cast of the show...because this short clip of an older Dewey, drawing on faces in a photo book was constantly shown on SkyOne before the final episode... Here is a link to the clip which is being shown before the final episode, saying dont miss it...
Thanks to the person off this website who created it