The fire of LGBT pride has been spreading like... well... wildfire. Especially after the US Supreme Court ruled in favour of their marriages. People from all over the world have been using the Facebook rainbow filter to celebrate along with those who were fighting for these rights. The filter signifies gay pride and from celebrities to big brands, everyone has followed suit.
Mark Zuckerberg did it.
9GAG also did it.
Even 'The Terminator', Arnold Schwarzenegger followed suit.
Basically, everyone is gunning for it.
But before any of these guys stepped up, Doordarshan had done it. A long, long time ago.