Power Lunch is a television business news program on CNBC, airing between 1 p.m. and 2 p.m. Eastern Time. It is presented by Tyler Mathisen, Brian Sullivan, Amanda Drury and Melissa Lee. Bill Griffeth anchored the program alone from 1996 to 2002. Caruso-Cabrera joined the program as Griffeth's original co-presented from February 4, 2002, to December 5, 2003, before being replaced by Sue Herera starting on December 8, 2003. Caruso-Cabrera and Dennis Kneale appeared on the show regularly in their respective analyst capacities until both became full co-presenters in 2009. Mathisen joined the program in late 2009, after Griffeth's leave of absence began.Power Lunch used to air for two hours (noon to 2 ET) until June 7, 2010, when it moved to 1 ET and had its running time cut in half, from 2 hours to 1 hour, to make room for The Strategy Session at noon ET and the Fast Money Halftime Report at 12:30 ET. The show became a 2-hour program once again on February 9, 2015, as the running time is now from 1-3 p.m. ET, replacing Street Signs, which had its final episode on February 6, 2015. Sullivan and Drury, both of whom previously co-anchored Street Signs, joined Power Lunch February 9, along with current Fast Money and Options Action host Melissa Lee. They replace Herera, who left Power Lunch three days earlier. On October 13, 2014, Power Lunch was launched in full 1080i high-definition as part of CNBC's network-wide switch to a full 16:9 letterbox format.