The Sci-Fi Channel's television series, Ghost Hunters (http://www.scifi.com/ghosthunters/) has been quite successful with Jason Hawes & Grant Wilson heading their team of paranormal investigators from their home town of Warwick, Rhode Island.  This team has investigated many different type of locations such as historical hotels, a battleship, a lighthouse, private residence's, and much more.

I have personally heard some criticism of the show, TAPS (off the air), and the professionalism of Jason and Grant. However, it is my opinion that the investigations themselves are done quite well, especially considering their use of more scientific methods.  They use instruments such as EMF meters, digital thermometers, video cameras, infrared, thermal imaging, etc.  Many hours are spent reviewing pictures, photos, and EVP's (electronic voice phenomenon).

Ghost Hunters also does very well in explaining TAPS procedures, beliefs, as well as paranormal terminology to someone that might be a first-time viewer of the show.

There are other television series such as Most Haunted (http://travel.discovery.com/fansites/mosthaunted/mosthaunted.html), which rely mostly on mediums, Ouija boards, table tipping, and other non-traditional practices. Their little use of any equipment and their over-used practice of using medium Derek Acorah keep even a paranormal investigator, such as me, quite a skeptic regarding any of their investigations. 

Upon reading their message boards myself, it is rumored that TAPS will be visiting St Augustine in January or February of this year. I think that visiting the nation's oldest city, in our great state of Florida, may just open some additional investigations such as Cassadaga, Key West, St. Petersburg, or Ybor City.

TAPS can be visited at http://www.the-atlantic-paranormal-society.com/, and is one of the best for information and reading of the paranormal.