Bert Through the Years

From Muppet Wiki

The Evolution of Bert (1969-present)

Image	As seen in	Year	Notes
	Sesame Street early Season 1	1969	The original Bert. His unibrow never moved and his hair appeared to be unkempt in some sketches.
	Sesame Street later Season 1 - Season 2	1970	Bert's head shape is more refined, with a more flexible neck. He can scrunch his mouth. His eyebrows do not cover his eyes.
	Sesame Street Season 3 on	1971-1976	Bert gets eyebrow mechanism, allowing his brow to move up and down. His eyes are larger, and his colors more vibrant.
	Sesame Street	1977-1981	Bert's skin changes from blanket fleece to antron fleece.
	Sesame Street	1998	Publicity poser with more rounded eyebrow.
Predecessor Puppets and Planning
	Bert on Sesame Street	circa 1969	Early sketches immediately established the contrast between Ernie's horizontal stripes and general look and Bert's vertical stripes and leaner appearance.