Another thing that the thing I was reminded of reminded me of in turn:
As to the lack of overall establishing shots in these telecasts:
The Met's productions of Falstaff are great fun at the end when, for that jaw-dropping final fugue, the house lights are brought up partially - just enough - as the titular character sings of the entire world being fools, audience and orchestra included. On the two productions in rotation -- the Zeffirelli and that modern-dress one -- the video producers pull back and give you some of that. So for one brief shining moment, the audience at home gets a hint of how fabulous that stage looked from right there in the house.
EDIT: They did that, too, at the end of Mahagonny way back when. On just the last phrase or so of "nothing you can do will help a dead man", we are suddenly treated to the whole picture from a camera positioned halfway back. I don't know if there are other such examples.