By Charlie Conchie The state-backed investor British Patient Capital and founder of troubled car firm Cazoo have backed a £76m injection into a London-based venture capital firm as it gears up for a spate of AI investment in the coming months. Episode 1, a London-based early-stage tech investor, announced this morning it had closed the £76m fund with £20m backing from British Patient capital, the long term investment arm of the state-owned British Business Bank. Listed VC firm Molten and founder of Cazoo Alex Chesterman have also backed the new vehicle. Launched in 2013, Episode 1 has backed o…