Surely, we could've come up with a better task than BB.
How about, as a starter:
Each housemate would get called into the diary room and be told to make their nominations. But then, put them all in one bedroom and in a second round, one by one they would be called back into the dairy room and be asked to say who they thought had nominated them, then on to the other bedroom.
After they had all completed both rounds, the recording of them saying who they thought had nominated them would be played to the whole group. Now that would have been gripping viewing !!!