I am actually starting to feel a bit sorry for the man. You can hear the strain & depression in his voice, his hair has receded still further &, in my opinion, it looks as if he is now wearing something akin to a full wig rather than just a top piece. Just look at the photo on p35 of
The Times 16 November - you can see the 'hair line' going round to the back of his neck with his sideburns peeking through.
The Times has also helpfully provided a series of then & now pictures for comparison
pippadom