Update time, now that I've seen the show (Monday night here, with the note that I missed the first 10 minutes while coming home from work)
Better than I thought it would be - a quickie review of the history of the genre, interviews with the WGMC, Winkster, Bob Stewart, Monty Hall, Jack Narz, Bob Eubanks, Hugh Downs, Phyllis Diller.
And, of course, Betty White. (Note to correct earlier post - they do mention Arlene Francis being the first female host. In fact, I found few real errors, but then, I wasn't sitting there with a pad and pen.)
A little light on clips - there's an old WML here, some You Don't Say! there, some Paul Lynde zingers.
The second half of the show looks at what makes a good show - Stewart on "yelling at your TV" - and what makes a good host, noting that the only comedian who had really made a success of it was Groucho. And to wrap it up, they ask who was the best host....
should I spoil it?