Ears pricked up during a dedicated CTO panel at Stream TV Europe, where technology vendors were given a rude awakening. SkyShowtime, the European streaming joint venture between Comcast and Paramount Global, is shocked by the volume of cold calls and emails from vendors asking the company’s CTO, Josh Snow, for five minutes to share his technology roadmap. The message to vendors from UK-based Everyone TV, the organization driving the British Freely TV streaming service, is to first figure out if you can provide a “great” technology product or service, and then follow that up with hard evidence to prove it, rather than peddling something that’s just “good” at what it does. “Do your homework,” stressed Everyone TV CTO Orpheus Warr.…