Complex sentence: At 6:07 a.m. on November 17,2011, B101 switched to all-Christmas once again starting with "It's the Most Wonderful time of the Year" by Andy Williams.
Split into simpler sentences: At 6:07 a.m. on November 17,2011, B101 switched to all-Christmas. This started with "It's the Most Wonderful time of the Year" by Andy Williams.