1st Logo (1997-2008)
Nickname: "YTV's Friend"
Logo: On a black background, we see the word "Treehouse" in a green decorative font with the yellow trim behind it. The Corus byline "A Corus Entertainment Company" with "COrUs" in it's corporate font, fades in below the Treehouse logo.
Variant: On Seven Little Monsters, the words "TV" are under the "Treehouse" word with "Produced in association with" above. There is no Corus byline.
Note: There was also no Corus byline for the Treehouse logo as well between 1997 and 1999 (Corus Entertainment Inc. was developed in 1999).
FX/SFX: None, or a blur effect at the start of the Treehouse logo.
Music/Sounds: None, or the closing theme of the show.
Availability: Seen on most recent episodes of The Big Comfy Couch. Also appears on Max & Ruby on Nick Jr. (not on Nickelodeon's reruns however, it plasters it with the next logo), The Berenstain Bears on PBS Kids Sprout, and other Nelvana Shows. The "Treehouse TV" variant appeared on Seven Little Monsters, but sadly, that variant is now extinct. The best way to find this is to check your old tapes of it or go to Ebay for a video of the show.
Scare Factor: None to minimal.
2nd Logo (2008-)
Nicknames: "Outside", "YTV's Friend II"
Logo: On a CGI background of a grasslawn, with background designs(such as a house, flowers, bees flying around, a rainbow etc), we see the Treehouse logo, which is in the same font as before, only more slanted upright a bit, and we zoom out a little bit to see all the designs in the background. The Corus byline appears(in it's respective font, but not in it's proper colors this time, and the Treehouse font for the Corus byline is different, too), and a yellow bird lands the top of the Treehouse logo, and looks at it.
Variant: On Treehouse Presents: Lost & Found, the Treehouse logo is different-looking. the Corus byline is gone, the Treehouse logo is slanted like the first Treehouse logo, the houses appear. on the DVD Chugggington DVDs, the frogs appear leaping.
FX/SFX: The screen zooming away from the Treehouse logo.
Music/Sounds: The rainbow sound, then children saying You're Watching Treehouse!
Availability: Appears on 2008-present episodes of Max & Ruby and Toot & Puddle. This also plasters the previous Treehouse logo whenever Nickelodeeon airs older episodes of Max & Ruby.
Scare Factor: None, it's a friendly logo.