Tim Allen was 33 in What Do You Say to a Naked Lady? when he played the character 'Himself'.
That was over 36 years ago in 1988.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 70, and has starred in 61 movies in total, 60 of those since What Do You Say to a Naked Lady? was released.
In What Do You Say to a Naked Lady?, I think Tim Allen looks: