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 by Kampana Television Corporation, which provided programming content from ABC, CNN and ESPN on this channel then. 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 on 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. On October 30, 2012, the channel was renamed as the Solar News Channel. On December 1, 2013, SNC's programming was moved to RPN for wider national coverage, with ETC returned to SBN a day before. In 2015, SBN ceased using its old analog transmitter tower at Strata 2000 building in Pasig City and began using Solar's newly constructed tower located in Antipolo for a clearer and better signal reception in both the analog and digital signals. As of September 12, 2019, SBN closed down its analog signal.
SBN launches its digital television broadcast in 2015. Solar Entertainment supplies its DTV channels through the new platform. For unknown reasons, the transmitter's encryption system was activated throughout its run, making two of the station's subchannels receivable only on set-top boxes with this capability. The technical issue was fixed by September 25, 2017.
In addition, Solar operates its secondary channel via DZBC-TV on UHF Channel 30 under a subchannel lease agreement from its frequency owner Byers Communications.
Channel
Video
Aspect
PSIP Short Name
Programming
Note
30.01
480i
Reserved Channel
rowspan=2
Test Broadcast
30.02
480i
Reserved Channel
-
Test Broadcast
30.03
480i
Solar Learning
Solar Learning
Test Broadcast
30.04
480i
Reserved Channel
rowspan=4
Test Broadcast
30.05
480i
Reserved Channel
-
Test Broadcast
30.06
480i
Reserved Channel
-
Test Broadcast
30.07
480i
Reserved Channel
-
Test Broadcast
Analog-to-digital transition
On September 12, 2019, SBN closed down UHF Channel 21's analog signal in preparation of the DTV transition implementation. SBN is the 5th television network in the Philippines to permanently terminate its analog TV broadcasts, and go digital only.