Shortly after writing Going from Couch Tv 1.0 to 1.1, Apple approved a bug fix update 1.2. fixes include better DLNA discovery support. Over the halloween weekend I was able to test the following servers successfully:

• Twonky
• Kodi
• Serviio
• TVMobili

Also included in this update are general usability fixes around playing videos and other small bug fixes. This release was reviewed and approved in less than an hour! If anyone at Apple is reading this, thank you for the quick turnaround!