Complex sentence: Special idents were made for CBBC on Choice before using the regular ones from 1998-2000, based on the first set of BBC Choice indents consisting of 3 items with similar names, like boxer shorts, boxing gloves and a boxer dog.
Split into simpler sentences: Special idents were made for CBBC on Choice before using the regular ones from 1998-2000. They were based on the first set of BBC Choice idents consisting of 3 items with similar names, like boxer shorts, boxing gloves and a boxer dog.