Boondocks season 1 and 2 were the only great seasons. Season 3 was okay and 4 was terrible.
Once McGruder left it was over, show just wasn't the same. It got to the point where Huey barely said anything in Season 4 because they didn't know how to write him and for some reason Granddad became the star of the show out of nowhere. You could feel the change in Season 3 but Season 4 was all the way in garbage.
They completely got rid of Ed and Rummy too, two of the funniest characters on the show. Those 2 have zero appearances in Season 4. This is also the same season where Grandad, Huey and Riley became slaves. You could feel the show getting further and further away from the social commentary and Huey being basically silenced in Season 4 further told you that. Even Jazmine was barely around and there was no further advancement with her and Huey's friendship.
You could tell the writers didn't understand the characters or their relationships with each other. Even the soundtrack was different, previous seasons had music from MF DOOM(Madvillian), Rakim, Mos Def, Pete Rock, Raekwon, Public Enemy, Kanye, etc and Season 4 had none of that. Didn't mean to rant but Boondocks was one of my favorite shows, I hated how it went out.