After a host of new hybrid buses introducing the London Buses roundel i.e. LT logo earlier this year, a good number of batch of new conventional powered buses also come into service with the famous logo. By the end of this year, all new London buses are set to receive this livery as standard, which, rather oddly, bring us back to the same livery as the one London has accustomed to in the early 80s.
I believe that some of the new Wright B9TLs for Rt25 are working on RV1 because that all the hydrogen buses were withdrawn in Mid-june because of an electrical fire on one of them. Although they should be returning to service quite soon i believe.