20:25Hey You What If?Series 1You Can't Wait for Christmas?CBBC Mon 7th Dec 2020, 20:25 on CBBC ChannelAvailable for 5 monthsIt really is possible to time travel into the future, and the team show you how! GenresChildren'sFactualFactualScience & NatureBrandHey You What If?SeriesHey You What If?: Series 1 Source: BBC Online