From Muppet Wiki

Alphaboy is the name of a live-action segment on Sesame Street written by Adam Rudman which ran during Season 26.

Segments

B: Bicycle (EKA: Episode 3956)

Alphaboy takes a bumpy bicycle ride.

F: Feathers (EKA: Episode 3827)

Alphaboy fans his father's feet with feathers.

L: Leaves (EKA: Episode 3656)

Alphaboy leaps into lots of leaves.

N: Noodles (EKA: Episode 3822)

Alphaboy eats noisy noodles.