I don't see the problem though, if they have to dodge it they will just launch it between Tues 13th-Friday 16th June.

Sure that means a short series to make room for the awful summer CBB on the 1st week of Aug (8th).

My opinion:

BB18 Launch- Tuesday 13th June.
BB18 Final- Tuesday 8th August

= 8 weeks.

CBB20 Launch- Thursday 10th August
CBB20 Final- Friday 8th September

= 4 weeks, 1 day

BGT final will air on Sunday 4th June after it's semi's air from Monday 29th May-Friday 2nd May?? I can see it finishing a week before or a week later.

7 Auditions with the 7th airing 27th May.

This way BB must have started AFTER Monday 5th because they will not have BGT and BB crossover like it did for BB16.