An influx of advertising technology vendors in recent years has made our job of spot the difference increasingly tricky from the outside looking in. That’s why we often have to take the word of companies like Comcast as gospel, with the means and resources to identify a killer secret sauce when it sees one, something of the TVSquared flavor variety, for example. As promised, after our tongue-in-cheek suggestion that Comcast should hurry up and buy the Scottish start-up, we got on the phone to TVSquared and dug about for its hidden ingredient. “We get skeptical too – there’s never one thing. We worked on the Comcast Accelerate project back in 2014 and tackled a number of different attribution data challenges…