You can catch GI Joe on the weekends on the Cartoon Network like at 12am or 1am. They are on for an hour. The older Superfriends are on right after it.
Flinstones are on everyday

. I knew they played Thundercats for a while but dont know if they moved it to early morning or what.
I wish they would play all the good cartoons we grew up on on that channel then they wouldnt have to rerun any shows. They have played new ones and they need to play some of the oldies but goodies

. I mean come on its the CARTOON NETWORK HELLO!!!