HART has been posting some really great stuff on its You Tube channel. If they'll pardon the direct embed here's an exciting one that shows off what a light rail station in downtown Tampa will look like.
And here's another I found interesting. It's a clip showing off how priority lighting will actually work with HART's upcoming MetroRapid bus rapid transit service. Now, this one is a little surprising. My impression of signal prioritization was that a bus travels on a road alongside all other vehicular traffic and, as it approaches a stoplight, it changes it to green, or, in some cases, prolongs an existing green light. Well, as you can see in this video it means something entirely different. In this demonstration, a bus travels along in the right lane of a 2 lane road (Nebraska Avenue perhaps). Rather than change the traffic light for all traffic in the road, it changes the light in its own lane only. So, it's possible you'll be sitting waiting for a green light alongside a HART bus when suddenly the bus goes. Be careful! :)
I suspect in reality this is just a variation of signal prioritization. One supposes that because HART produced this video, this will in fact be how it works for some stretches of the line, which is pretty cool and clever. It explains how integration on such a narrow straightaway like Nebraska will be pulled off.