Thank you for your wonderful comments, I enjoyed reading them.
With the relationship that has grown between Harry and the lads, I think we will find that they don't need to be convinced, they just need to be asked. We just have to wait to find out if Harry figures that out and asks them. He may need some convincing to speak to them. I'm sure they would happily stay with their Gramps.
Charlie and Brad are taking things slowly and getting to know each other better, as you point out it is within their nature. I think it gives a better chance for a strong relationship and I'm sure you will join me in wishing them well.
I'm happy that you enjoyed the Christmas show, knowing that @raven1 and I brought fun and enjoyment to others fills me with joy.