Figure skating star Kim Yuna lights cauldron; North and South Korean leaders shake hands
JioTV will work with the IOC to provide comprehensive coverage of the Games in India
Olympics have triggered a rapid rapprochement on the Korean peninsula
North Korea has taken part in seven of the last 12 Winter Olympics, most recently in Vancouver 2010
It will be the first time the two Koreas have marched together during the opening ceremony of an international sporting event since 2007
Seoul has long sought to proclaim the event a "peace Olympics" in the face of tensions
The moves represent routine training and scheduled upgrades, according to US military officials
North Korea announced its participation on Tuesday after the first inter-Korean talks in two years
In cross-country skiing, athletes must ensure they get their "kick wax" right in order to keep pace in the uphill stretches, says former biathlete Jean-Marc Chabloz
Russians protest against Olympic team ban; support of millions of Russians, says state media, but automated Twitter accounts amplifying reach; some supporters linked to previous pro-Kremlin campaigns
The ban means that now 'clean' Russian athletes cannot participate in the games under their country's flags