21:00The Royal BodyguardEpisode 4: The Royal Art of BlackmailBBC One Duration: 30 minutes Mon 16th Jan 2012, 21:00 on BBC One CambridgeshireComedy series. Hubble is sent to investigate a burglary at Buckingham Palace but the evidence points to him being one of the thieves.ContributorsGuy Hubble:David JasonDennis Whittington:Geoffrey WhiteheadSir Edward Hastings:Tim BentinckSir Ambrose Hamilton:David WalliamsYates:Tim DownieOld Man/Gibbs:Cavan ClerkinLock:Ricky ChampGenresComedySitcomsSeriesThe Royal Bodyguard Source: BBC Online