IMHO, almost any vehicle will derive benefit from the modern versions of WDHs that are being produced now. Your TV may or may not need the "support" of a WDH, but, even class IV hitches found on most trucks have a vertical load limit (tongue weight) when a non-WDH is used and usually the tongue weight limit goes up if a WDH is used, you'll have to check your truck's documentation to be sure.
The biggest advantage in today's WDH devices is the added suppression of sway. Virtually every version of WDH has sway mitigating devices built into the hitch and for that reason alone, I recommend having one. While your truck may be fine without a WDH for a <2,000 lbs utility trailer, almost any trailer above 2500 lbs (basically any trailer that requires brakes) will be a more stable tow with some form of sway prevention.
So, IMHO, yes you should get a WDH
As for brand? I'm partial (if you look at some of my other posts on this site, you'll see) to the Equal-i-zer brand and for most of the CruiserRV line, I recommend the 1K bars. To be honest, most all of the manufacturers make a good unit, if you gloss over the "cheapies" (you do get what you pay for in hitches). There are "ubber" fancy centerline type hitches out there that you can spend thousands of dollars on, but, unless you are towing really, really large with a borderline TV, I feel they are over-kill unless you just want bragging rights... I found the Equal-i-zer easy to hook up (no chains to fight with), easy to adjust, good at sway prevention and very easy to maintain. You'll just have to look to see what's available and choose one based on what you like.