The evolution of Bert.

Image As seen in / Year Notes
Bert1970s.jpg
Sesame Street
early
Season 1
(1969)
The original Bert had an immobile unibrow and his hair appeared to be unkempt in some sketches.

Early during season one, Bert's eyebrows get slightly repositioned losing him his grumpy facial expression for a more neutral one.

Bert1970.jpg
Sesame Street
later
Season 1 - Season 2
(1969-1971)
Bert's head shape is more refined, with a more flexible neck. He can scrunch his mouth. His eyebrows do not cover his eyes.
Bert1971-1976version.jpg

Bertearly70s.jpg
Sesame Street
Season 3
(1971-1976)
Bert gets an eyebrow mechanism, allowing his brow to move up and down. His head becomes slightly more teardrop shaped. His eyes become slightly smaller, and his colors are more vibrant. By Season 4, his eyebrow becomes considerably thinner.
Bert season 6.jpeg
Sesame Street
Season 6
(1974-1976)
Bert's skin is more golden. His eye focus is not as strong seemingly due to slightly smaller pupils. His eyebrow is much straighter.
Bert season 8.jpeg
Sesame Street
Season 8
(1976-1977)
Bert has paler Antron fleece skin. He also has a much taller and rounder head. His eyebrow becomes immobile, and his eyes are smaller.
Bertmid70s.jpg
Sesame Street
later
Season 9
(1977-1982)
Bert's skin is darker. He has also regained his eyebrow mechanism, and the down motion is improved. His head and hair are slightly thinner, and he has sturdier shoulder joints.
Bert1982.jpg
Sesame Street
Season 14
(1982-1989)
Both skin and clothing colors are brighter. Also, Bert's nose is smaller and his head is more rounded.
BertPortrait.jpg
Sesame Street
Season 25
(1989-1996)
Bert's head is slightly wider with even smaller, more separated eyes.
Oatmealbox.JPG
Sesame Street
Season 28
(1996-1998)
Bert has a taller head, his hair is most often combed upward (rather than messy like Ernie's hair), and he has a more rounded eyebrow.
BertEarly00s.jpg
Sesame Street
Season 32
(1998-2001)
Bert's head is shorter and a bit thicker than the previous version. His eyes are positioned closer together and his nose is longer.
Bert2000s.jpg
Sesame Street
Season 35
(2002-2011)
Once again, Bert's head is taller, much like the 1996-1998 puppet. His antron fleece skin appears smoother and lighter yellow, and his nose is more red-orange in color.
Bert-2011.jpg
TomTom promo
(2011-present)
Bert's head becomes thinner and his eyes are farther apart.
Bert 2013.jpeg
Sesame Street
Season 45
(2014-present)
This version of Bert is interchanged with the previous version. Bert's head is wider and slightly shorter. His nose is higher up, and his eyebrow is thicker.
Predecessor Puppets and Planning
BertErnie1.jpg

Bert-and-Ernie sketch.jpg
Design sketches for 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.

Chroma key shirts

In order to accommodate Chroma key (i.e. blue or green screens), the stripes on Bert's shirt occasionally change color as to not be keyed out.

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