Complex sentence: KEYT has since reached an agreement with Cox Communications in Santa Barbara, Comcast in Santa Maria, and as of late October 2007, with Charter Cable in San Luis Obispo to carry its HDTV signal.
Split into simpler sentences: KEYT has since reached an agreement with Cox Communications in Santa Barbara and Comcast in Santa Maria in providing its HDTV signal to them. As of late October 2007, KEYT reached an agreement with Charter Cable in San Luis Obispo to carry its HDTV signal.