Complex sentence: The show was again revived for one night as part of "Ant & Dec's Gameshow Marathon" in 2005, a series of the Geordie duo presenting classic ITV gameshows as part of the channel's 50th anniversary in their own style.
Split into simpler sentences: The show was again revived for one night as part of "Ant & Dec's Gameshow Marathon" in 2005. This was a series of the Geordie duo, who presented classic ITV gameshows as part of the channel's 50th anniversary in their own style.