A few things discovered on my Samsung UE50ES6100.

First of all, most/all functions previously posted for other models seem to map just fine, except for the stuff that simply doesn't exist (e.g. HDMI4, AV2 etc). Have no USB disc attached, so I haven't been able to test the PVR functions.

I noted a few changes and a few more functions compared to Jason's and Jeff's lists (some of these are also mentioned in previous posts):

0 - Audio Toggle
1 - Source List
2 - Power Toggle
37 - Audio Description/Digital Subtitles
39 - Audio Description/Digital Subtitles (same as 37)
44 - Text
54 - Reset List of Channels and Favorites (oops :-)
63 - Support
77 - Universal Remote Setup
79 - Guide (EPG)
82 - Audio Language
100 - Login (Social/Smart TV)
107 - Channel List
115 - Search
121, 140, 147 - Smart Hub
132 - Ext (A/V)

THANKS FOR A GREAT THREAD!!!