Southern Broadcasting Network of Davao launched SBN Channel 21, the first local UHF TV station in Metro Manila since 1992. It was then known as World TV 21. The idea is to bring back programming similar to the forcibly shut-down FEN Channel 17 of the former Clark US Air Base a year earlier due to the eruption of Mt. Pinatubo.
Beginning on January 1, 2008, Solar Entertainment began to lease airtime on SBN, choosing to broadcast programming from its entertainment channel ETC. This partnership ended in March 2, 2011, as Solar transferred ETC to RPN. As a result, SBN renewed partnership with Solar Entertainment to create the news network Talk TV. And on October 30, 2012, it is now as the Solar News Channel, the first 24-hour English news channel on free-to-air TV.
By November 30, the Solar News Channel programming will move to RPN, and its entertainment channel, ETC will come back on SBN-21.
Recently, on February 22, 2014, SBN 21 limited its operation to ETC from 5:30 AM to 12:00 MN to 7:00 AM to 12:00 MN on Free TV prior to National Telecommunications Commission rules on affiliated free TV stations.