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.
It could have been epic if they got over their love of Lana when they left high school. They should have made him Superman after Johnathan died and skipped all this Blur, Doomsday, Chloe in every scene and shipper bullshit.