I recently watched quite a bit of a 4-DVD set of "Here's Lucy!" episodes including extras such as rehearsal footage, syndication sales tapes, Thalians award show, commentary by Lucie and Desi, Jr., etc.
In spite of Lucy's neediness, bitterness, volume and high vocal pitch, I quite enjoyed her honed technique, especially in the Burton/Taylor episode where she seems to really give a damn.
Also, her clothes are very chic for the most part (nicer than all the other actors' costumes) and I especially loved the once-familiar "fallout shelter" sign in the hallway outside Uncle Harry's office! The dance number Ann-Margret does with Desi, Jr. is something to behold. The Wayne Newton episode, believe it or not, is fun. And Lucy, Lucie and Ginger Rogers dancing the Charleston is cute. Lucy loved a Charleston!
The animated Lucy puppet during the credits is adorable, but you get sick of it if you watch too many episodes!
What I really want to see are "The Lucy Show" (before "Here's Lucy!") episodes and extras, when Viv was Lucy's housemate and there were three kids living with them (not Lucy's own kids).