S4
I just watched it & enjoyed it overall. Was a bit upset at the tepid kiss at the end of S3, but enjoyed Lee/Amanda's relationship in this season, including various developments from dating to marriage to dealing with a secret marriage, including Lee getting to know the boys. A highlight of the season.
As noted in another thread regarding favorite episodes, did not like the two part season premiere. Seemed padded and had various other problems imho, including more opportunity for Dotty to be totally clueless [I have this idea that deep down, she knows everything, but simply is playing dumb.] Then, there is a more charming episode about Lee's parents (directed by Kate Jackson & nice small role for the actress playing his mom). And, there are some good episodes ("Billy's Lost Weekend" is an example), two repeat players (T.P. and Dr. Smythe ... or however he spells his name) who steal various scenes (TP has his own episode, basically). Plus, we don't only see Francine have various hair styles, in lingerie but trapped in a crate and warning Amanda not to get too close to Lee.
The Christmas episode was okay but other than a continuity error, the notable thing was that the opening music was replaced by Christmas music. Cute.
The season ended on a sore note given Kate Jackson's health problems, which particularly came clear with "Mission of Gold." We saw less of Amanda, take a look at her hair & at times she sounded pretty tired on the phone. The plots in the final few episodes were a bit weak though the final episode (which doesn't seem to be intended to be ... there really isn't any sense of closure though it ends on a nice touch) had a pretty good plot.
And, there is always the "I know that person!"