Help connect Galaxy S4, Galaxy Tab S 10.5 or HTC Sensation XL to TV help

[beastkingblast]

I'm looking to connect one of these to my TV preferably via HDMI as cheaply & easily as possible. My laptop is nearly broke & unfortunately can't afford another as I'd normally use this. I've read about MHL but don't know the ins & outs. My TV is about 7 years old (it has HD connection ) but don't know about compatibility. The HTC would be best as its kind of unused so could just sit there connected & not need to be used otherwise. Any advice is very much appreciated