[JayManUnleashed]

When Ultimate BB was announced, during the peroid from then to now, the Ultimate Housemates have had new publicity shots. They would not carry on like "Day 80" anyway, because they haven't been in the house for 80 days. Plus on the E4 Live Streaming programme after the final, it says as a description "Streaming live and direct from the Ultimate Big Brother house" which also hints that it would start from Day 1 because they have changed the house name. I hope this helps.