Please see the downloads section for an example of client user agent/code version detection.

For Client Detection of User Agent (using Javascript)
EMMY	Mozilla/3.0 (; DTV 1.*;WIN32; 16;)
Set Top Box	Mozilla/3.0 (; DTV 1.*; PACE/ntl; 16;)
HTTP Header/Server Side User Agent detection
EMMY	Mozilla/3.0 (; DTV 1.*; WIN32; 6;)
Set Top Box	Mozilla/3.0 (Liberate DTV 1.*)
* will show minor Liberate version information (e.g. DTV 1.1 or DTV 1.2.7.2)