How many different openings are there?

I remember:
1 - The hippie one
2 - The one where the person is painting a portrait
3 - The one where they added a family picture of Andy as a baby

Are there any others?

There is one other one where there is an individual picture of Brian Bonsall as Andy. It is used for seasons 5-7.

Originally posted by FamilyTiesFan
There is one other one where there is an individual picture of Brian Bonsall as Andy. It is used for seasons 5-7.

Nope, just seasons six and seven.

Version 1 (Season one)
Version 2 (Seasons two and three)
Version 3 (Seasons four and five)
Version 4 (Season six and seven)

Almost.

Version 1 (season 1) - hippies with original theme by Dennis Tufano and Mindy Sterling

Version 2 (season 1) - hippies with theme by Johnny Mathis and Deniece Williams

Version 3 (seasons 2 and 3) - portrait

Version 4 (season 4) - family pictures with Andy as an uncredited toddler

Version 5 (seasons 5-7) - family picture with Brian Bonsall as Andy