16:33AlphablocksSeries 1Episode 15: UFOCBeebies Tue 16th Feb 2010, 16:33 on CBeebiesA stargazing trip leads to a close encounter with some unusual visitors...ContributorsPresenter:Teresa GallagherParticipant:David HoltParticipant:Lizzie Waterworth-SantoExecutive Producer:Joe ElliotDirector:Adam ShawProducer:Sioned Wyn RobertsProduction Manager:Ruth LilleyWriter:Max AllenWriter:Joe ElliotWriter:Neil RichardsWriter:Maurice SucklingWriter:Emma CollinsGenresChildren'sEntertainment & ComedyLearningPre-SchoolFormatsAnimationBrandAlphablocksSeriesAlphablocks: Series 1 Source: BBC Online