I'm positive about multi-site. Our church is multi-site. But I'm not positive about video-venues. To be honest, I'm not even particularly positive about preaching the same sermon over and over again at separate services.
At Crossroads we preach different sermons, with different preachers. Even when Crossroads first moved to three services, I prepared and preached three sermons myself.
In this video, from Exponential Conference, Ed Stetzer and Al Hirsch share some concerns with multi-site. My favourite comment:
It's easy to create a new venue. It's hard to create a new Andy Stanley.