Yes, it aired from September 28, 2008 to May 17, 2009
Season 20
Season 20 | Four Great Women and a Manicure
Season 20's How the Test Was Won
you can buy it at the shops or well 20 or 21 is a lot
u can't see it yet because fox obviously decided to skip to season 20 and forget seasons 13-19. u can see the simpsons season 20 box art on Amazon
Season 20
The end of Season 20 & the start of Season 21
21
season 20 because that was the season when the simpsons became in high definition
21 eps .
Season 20 | Four Great Women and a Manicure
Season 20's How the Test Was Won
you can buy it at the shops or well 20 or 21 is a lot
November 1, 2000 - May 20, 2001
u can't see it yet because fox obviously decided to skip to season 20 and forget seasons 13-19. u can see the simpsons season 20 box art on Amazon
Because FOX wanted to cash in on the fact that it was the 20th anniversary of The Simpsons and it was the first season in HD, which is why it was a bare bones release, no special features or commentaries.
Season 21 Episode 20 | To Surveil With Love