IR codes for TVs usually do not change much over time. The code may do a different input than what was originally listed 10 years ago. And new codes are sometimes added. But things like Power on & off usually stay the same.

That being said, there are a couple of power codes that were different over the years. But not a whole lot to search thru.

Hex codes for Pronto can be found in the files section of this forum board:
[Link: files.remotecentral.com]

There are many Samsung files that have all the known IR codes. Missing are just the more modern codes for the smart functions.