[JMT1985]

I wonder if Graham was to be replaced for the BBC's flagship chat show, would they have a harder time attracting the caliber of guests they have now?

From a PR view, yes, it's still the most popular chat show on British TV and makes more sense for a celebrity with something to plug to appear there rather on Jonathan Ross or The Lateish Show. But Graham has undoubtedly built a reputation for him and his show, where the guests know they're likely to have a really good time and feel relaxed.

Quite what your Tom Hankses or your Jennifer Lawrences would feel about being interviewed by Claudia Winkleman or Jack Whitehall is anybody's guess.

I think yes, it will be hard for a new talk show to get the big guests - BBC would need to hire someone who is known internationally - the name Jack Whitehall has been going around since 2019 as a possible replacement for Graham, considering Jack stood in for Graham for one show in 2019 - Jack is known in the US, since his TV shows and stand up specials are all on Netflix, I can see Jack being able to attract big celebrity guests