Debuts can sink an act before they get started, or give them a mountain to climb to get over with a brand-new audience.

Rey Mysterio was involved in an insane feud with Seth Rollins that led to him losing an eye on WWE programming.

Look up! Dr Maggie Aderin-Pocock and Professor Chris Lintott present the iconic, inspirational look at cutting-edge space science and the incredible universe all around us.