The first seasons were great with Trapper, Henry, et al. When they left, weaker (and generally less-funny) characters were added - Potter (OK), BJ (blah!), and Alda's self-righteous tripe started to dominate the show. Then the capper, Winchester (ugh) replaced Burns (funny). At the end, it was simply a sappy, self-engrandizing, overwrought tub of goo.
M*A*S*H turned to M*U*S*H.
M*A*S*H turned to M*U*S*H.