Not a serial poster but here are my thoughts anyway,
The reason I believe they have chosen the Sunday is because of two factors,
1) They (Broncos RL) have obviously realised that one of the BEST supported teams in Super League cannot be expected to 'turn up' in there usually thousands on a Friday night, due to work commitments and travel times, thus,
2) Saturday seems the obvious choice......... BUT!!! This would result in the game being held on the same day as... Footballs Champions League Final (and London/Kent IS football orientated).
So, they have decided to go for the Sunday.
Now, may I say as a Hull FC fan, but now Portsmouth residence, how dissapointed I am with this actual choice of day. I really do feel sympathy for the Black & White faithful for this decision of playing on 'a Sunday', expecially with the 'Magic Weekend' litterally a week later (costs involving accomodation, travel, social (
).