Accessing Hotel Mode on Samsung B Series TV

The Hotel Mode is the secret menu option available on Hospitality TVs. It gives access to control a lot of TV features that the guest can access.
In order to enter into the Hotel Mode, power on the TV and wait for it to initialize completely, then press the following keys in order:
Mute > Up > Down > OK
This key combination is the the slim Samsung Remote as shown in the picture

Samsung Hospitality TV Slim Remote