Complex sentence: The 5 a.m. hour was renamed "KTLA Morning News First Edition", the 6 a.m. hour was retitled "KTLA Morning News Early Edition" and the 7-10 a.m. portion was renamed the "KTLA Morning Show".
Split into simpler sentences: The 5 a.m. hour was renamed "KTLA Morning News First Edition". The 6 a.m. hour was retitled "KTLA Morning News Early Edition", the 7-10 a.m. portion was renamed the "KTLA Morning Show".