Honestly not a single one. Not even Extreme Spots.
Did you read about my post on how the season 8 holdovers overlapped production with Season 9A. believe it or not, Little Yellow Book and Patrick-Man were animated before parts of Hello Bikini Bottom were. This also explains the strange airing order that took place in late 2012, with HD episodes airing the same night as the SD holdovers from season 8.
If my math is correct, For Here or to Go! was the final episode of season 8 not to overlap production with season 9, this was due to how long it took It's a SpongeBob Christmas to be produced due to it being stop motion.
Hello Bikini Bottom was made SDTV 4:3 on purpose because it was still conceived during season 8's production cycle, which was done to keep it consistent with the rest of the season. The episode's time of inception was between The Way of the Sponge and Are You Happy Now. That episode just happened to be the last episode from the eight season to be shipped off to Korea to be animated, hence why it's final production code is 178.
The episode completion dates are as follows, according to the US copyright database
175- It's a SpongeBob Christmas; May 8th 2012
176- Super Evil Aquatic Villain Team Up is Go/Chum Fricassee; May 3rd 2012
177- The Good Krabby Name/Move it or Lose It; April 26th 2012
178- Hello Bikini Bottom (Unknown completion date, shipped to Korea in March 2012)
So the production codes should've been this;
175a- The Good Krabby Name
175b- Move it or Lose It
176a- Super Evil Aquatic Villiain Team Up is Go!
176b- Chum Fricassee
177- It’s a SpongeBob Christmas
178- Hello Bikini Bottom
They probably swapped 175 and 177 because they didn’t want two specials next to each other.
Final episode numbers are based on when the episodes get shipped overseas.
It's unknown when Extreme Spots was complete versus when Hello Bikini Bottom was completed, but something tells me that Johnny Knoxville (Johnny Krill from Extreme Spots) and Andy Samberg (The Colonial from Hello Bikini Bottom) ate lunch together on the day they recorded their lines. They probably had steak and potatoes with wine.
Snoopy has a blue tint in some scenes in A Boy Named Charlie Brown.