Complex sentence: In its early days it occupied an early evening slot, usually around 5:15 pm, each weekday, when ITV didn't have so many shows and relied on repeats as well, it was also a common feature to remain during the Christmas/New Year schedules.
Split into simpler sentences: In its early days it occupied a weekday early evening slot, usually around 5:15 pm, when ITV didn't have so many shows and relied on repeats as well. It was also a common feature to remain during the Christmas/New Year schedules.