By Ayaan Ali Dec Donnelly was left wincing in pain after suffering an embarrassing blunder live on air. The courageous TV host, 48, is known for braving some of the most terrifying challenges on national television, and tonight, the star took on another daring challenge for Saturday Night Takeaway. Declan and his co-host Ant McPartlin returned to our screens again on Saturday night for another instalment of the weekend show. The show kicked off with the Geordie duo dressed in colourful suits on the rooftop of the studio where they were tasked with climbing two tall towers and pressing the buzz…