Complex sentence: On December 4,2006, "Nightly News" was presented with "limited commercial interruptions" through a sponsorship arrangement with Philips, marking the first time in its 36-year history that the newscast experimented with reduced advertising.
Split into simpler sentences: On December 4,2006, "Nightly News" was presented with "limited commercial interruptions" by Philips. This marked the first time in its 36-year history that the newscast experimented with reduced advertising.