Two collared kermit

[Fozzie Bear]

when did kermit lose the second collar and why?

Kermit’s collar for the Tales of The Tinkerdee pilot in 1962 was crenulated [sic]. The triangular points came later in the decade – in the late ‘60s, he wore a single collar with thirteen points, and in the first seasons of Sesame Street, he wore a double collar. Throughout the early 70s, adjustments were made to the collar, but since the first episode of The Muppet Show in 1976, Kermit’s look, with a single eleven-point collar, has remained virtually unchanged.