I'm not that old, but I remeber Debbie Dunning replacing Pam Anderson on Home Improvement. Debbie fit the cute girl that might know a bit about tools way better than Pam did. Debbie is still looks just as good today as she did then.
I got the story from zap2it, and it mentioned Boston Legal was a bubble show. I was surprised, since it usually averages 10 million or more viewers each week, and it had a poor lead in for most of the season (Danson's "Help Me Help You")