CBeebies has commissioned a fourth series of Adastra Creative’s hit preschool live-actioner Grandpa In My Pocket.

The 52 x 12-minute series will see popular UK actor James Bolam return as the fun and mischievous Grandpa and his magic shrinking cap. Now living in a windmill bed and breakfast, the Mason family encounters new adventures when son Jason’s young cousins visit and are let in on the secret of Grandpa’s shrinking ability.

Adastra’s Mellie Buse and Jan Page are executive producing the new series along with Michael Towner for CBeebies.

To date, Grandpa in My Pocket has been sold to more than 104 territories worldwide and is one of the highest rated shows on CBeebies. The IP was also recently turned into a live UK stage production and its L&M program has grown to include apps, DVDs and additional consumer products.