The fears of possible ratings issues with the prime time talk show as the lead-in for its late newscast would become well-realized, as viewership for WHDH's 11:00 p.m. news plunged to third place (a 20% drop from the previous year) during the November 2009 sweeps period. Other 'first-to-third' drops among NBC affiliates' newscasts in the 11:00 p.m. slot forced the network on January 10, 2010 to pull "Leno" from 10:00 p.m. starting after the 2010 Winter Olympics and move him back to "The Tonight Show" in a shake-up of its late night schedule. Although the radio station had dropped the WHDH callsign in 1994, channel 7 retained the "-TV" suffix in its call letters until July 8, 2010.