As the title suggests, are there any shows that had major changes (https://tvtropes.org/pmwiki/pmwiki.php/Retool/LiveActionTV) after a season or so that you actually like (https://tvtropes.org/pmwiki/pmwiki.php/GrowingTheBeard/LiveActionTV), even if it is against the norm and you actually enjoyed those early seasons (https://tvtropes.org/pmwiki/pmwiki.php/EarlyInstallmentWeirdness/LiveActionTV).

Perfect Strangers. The Chicago Chronicle was a much better workplace setting than the camera shop.

Newhart: Much preferred Michael and Stephanie over their predecessors.

IMHO, Mama's Family, Cheers, and Newhart all were reworked successfully.

I can name many more that weren't.