What would happen if Buzz still thought he was a space ranger and never learned he was a toy?

In the first Toy Story film, Buzz thought he was a space ranger until
when he saw the commercial that it was showed on the television at
Sid's house that where he learned in the fact that he was a toy. What
would happen if Buzz never saw the commercial that which he still
thought he was a space ranger and what would make the story
difference?