In April 6, 1944, YYInc TV1 was launched as TBC.
4 years after TBC3 launched, TBC was renamed to TBC1 and inspiring the TBC2 and TBC3 logos to make a TBC1 logo. This was the shortest living logo.
After Toralaq Republic was dissolved in October 23, 1999, TBC1 was renamed to NTVC1.
YinYang One/YYInc TV1
NTVC1 got renamed to YinYang One in 2006, but it is also called YYInc TV1 (pronounced Wai-Wai Inc Tee Vee Wan).
On June 1, 2018, YYInc TV1, and all of its sister channels, updated their logo. Also, it diched its historical green and replaced it with a plain black, same goes with its sister channels.