SpongeBob SquarePants (1999)

The Sponge Who Could Fly (aka The Lost Episode) - S3-E16

Continuity mistake: After the walk cycles, the color bars change between shots.

The Sponge Who Could Fly (aka The Lost Episode) - S3-E16

Continuity mistake: When the parrot lands the egg on the remote, in the next shot it vanishes.

The Sponge Who Could Fly (aka The Lost Episode) - S3-E16

Continuity mistake: On the news one fish had hair. Later it was gone.

The Sponge Who Could Fly (aka The Lost Episode) - S3-E16

Continuity mistake: When the tape pours out of the VCR at the end of the show, Patchy the Pirate gets tangled in it. A shot later, the tape is three times longer than it was the shot before it.