Throughout the entire series run, the closing credits have never credited Paul Reubens as Peewee Herman, but instead would display the other cast & guest stars first and then would display "and Peewee Herman as Himself".
I'm going door-to-door to make you this incredible offer!
Pee-wee: AAAAAAAAAAAAAAHHHHHH! SALESMEN!
When the fourth season premiered, it featured the same title sequence as the second (and third) season. But when the show re-aired on TV years later and its episodes released on VHS and then DVD, Blu-Ray and on Netflix, all fourth season episodes used the fifth season title sequence.
Take a look at your favorite stars from the 1990s and how they've changed in the last three decades.