The postcards are probably in a file in HR. When someone says, “Maybe we could cut FA”, they haul out the file and ask, “Do you really want to go through this again?!”
The video on Frog Blog about Jack Paar is interesting, and if you watch on YT, the one that follows of his guest appearance on Letterman in ’83 is also: Jack has a surprise for Dave at the very end.
The gray shows up in my Edge browser, but it also automatically blocks ads, as I find I get many news outlets asking me to disable it.