Complex sentence: The Harkins' daughter Amy appeared on the NBC daytime reality series "Starting Over" from 2003 to 2004, and his voice was heard in several episodes when his daughter spoke to him on the phone.
Split into simpler sentences: The Harkins' daughter Amy appeared on the NBC daytime reality series "Starting Over" from 2003 to 2004. Although Tom Harkin never appeared on the show, his voice was heard when his daughter spoke to him on the phone.