I heard a story not long ago from someone who has been in the casino industry in Mississippi for a long time...
Apparently there are two primary casino 'regions' in the state - The gulf coast; Biloxi and surrounding area... and the Tunica region - which is located in the northern part of the state, just south of the Memphis, TN metro area. Tunica bills itself as America's 3rd largest gambling destination (behind Vegas and Atlantic City, NJ).
Since Katrina hit the gulf region back in 2005, all of the casinos that were rebuilt there are IP systems. However, the Tunica region was spared the brunt of the storm so nothing had to be rebuilt here.
I also hear that Mississippi is one of the last states (I don't know of any others) to mandate digital recording by the State Gaming Commission. i.e. VCR-based systems that were installed in the Tunica region of Mississippi back in the early to mid 90's supposedly are still running VCRs to record their casino cameras.
Send Derek down on a fact-finding mission and have him stream his adventure via Periscope...