What makes a drama series tick, in OTT, that too in Tamil? The question should've been pretty straight forward and not as difficult as it is for making a successful movie, for drama series are dime a dozen across scores of TV channels and none of them are found wanting for audience. The more the cry the merrier the TRP. In that context, the only challenge that OTT platforms might've had while streaming tamil series must've been to choose the path - either the well trodden and worn out cryathons aligning with Satellite channels or try for something genre specific like how they do across English and other foreign languages. This is where Heartbeat series in Hotstar finds the fine balance between being a soap oppaari (no pun intended) in tv and carving a niche OTT audience. While the setup might've been familiar one for Hindi audience with so many series happening on hospital based storyline, i guess this is a first for tamil. The first season was more on establishing the...