| CBBC Summer Social: Mash-Up! | 1/3. With Sophia Grace, New Hope Club, Sam & Mark and More!: Yasmin, Jonny and Hacker kickstart a weekend of live music and more! Also featuring Ben Shires and Naomi Wilkinson. Also in HD. [S] | Fri, Aug 3, 10:00 am | CBBC | 60 mins |