What I meant was, Jim's charachters weren't regulars on the show during the 80's like they were during the 70's. In the 70's (from what I'm told) it was common to see Ernie, Kermit, and even sometimes Guy Smiley out on the main Sesame Street set, interacting with the humans, or with Big Bird or Oscar. Starting in the early 80's, Jim (and Frank Oz) didn't work on Sesame Street as much anymore, and only worked on the show a few days a year and recorded a handful of skits for each of their charachters, that were played throughout the season.