Complex sentence: In 2002, CTV sold CKBI and CKOS to the CBC, which converted CKBI into a repeater of CBKST Saskatoon under the callsign CBKST-9.
Split into simpler sentences: In 2002, CTV sold CKBI and CKOS to the CBC. Its transmitter became a rebroadcaster of CBKST in Saskatoon under the callsign CBKST-9.