We all know who shot JR... but how many of us are convinced about who shot JFK.
More than half the population of Great Britain switched on their TV's to watch JR Ewing gunned down in the much-hyped 1980 episode of the long running American soap. And we all know that everyone remembers exactly where they were and what they were doing when the president was assassinated in November 1963.
Scheming sister in law and mistress Kristin Shepherd was bang (literally) to rights for shooting JR, but when trying to decide who killed John F. Kennedy, conspiracy theories still abound to this day with many people believing that Lee Harvey Oswald was either a scapegoat or was acting as part of a larger plot.
Of course the one thing that links these two memorable events is the good old Texas oil town of Dallas. And today visitors to this brash, bold and surprisingly friendly city can get up close and personal to both shootings, something that I just couldn't resist doing on a recent trip to the Lone Star State.
I began by walking from my superb city centre hotel, the Fairmont Dallas, to the scene of the real life Nightmare on Elm Street, where today the old Texas School Book Depository has been brilliantly converted into The Sixth Floor Museum. It was from a corner window on the sixth floor of the building that Lee Harvey Oswald is said to have fired the fatal shots that cut down a popular president in his prime and changed the course of history.
It might seem a tad ghoulish to 'celebrate' one of the world's most famous murders by creating a museum on the spot where it happened, but once inside you soon realise that every effort has been made to treat this dark episode in America's history with the seriousness and reverence it deserves.
It's amazing how the memories come flooding back when you arrive at Dealey Plaza, walk along the famous Grassy Knoll, then enter the museum and end up standing next to the very window from where the fatal shots were said to have been fired.
If your memory is a little blurred about the events of that fateful day, you don't have to worry. Old newsreel footage is playing and you see the president's limousine turn into Elm Street and on to Dealey Plaza, you hear the shots ring out and you see the horrirfying site of Jackie Kennedy's blood spattered pink suit as the motorcade speeds off to nearby Parklands Hospital.
The Sixth Floor Museum opened in 1989 and receives more than 350,000 visitors every year. It started life as a temporary display then morphed into a fully fledged museum with an ever growing collection of documents, photographs, oral histories, films and artifacts.
And no attempt is made to rubbish all the conspiracy theories that began on the day of the assassination and have grown momentum ever since. Every view is discussed, every opinion considered and every fact dissected with forensic detail.
You could well spend a full day exploring the Sixth Floor Museum and never get bored, but my time was limited and after spending a fascinating four hours trying to decide if Oswald was the killer or, as he claimed before himself being shot dead by Jack Ruby while on the way to a court hearing, merely a patsy, it was time to head out to SouthFork Ranch where the atmosphere was a lot less intense.
The scene of JR's shooting was just how I expected it, all glitz and glamour with no expense spared to make sure the legend of the first of the TV blockbuster soaps lives on. SouthFork is less than an hour's freeway drive from the heart of the city and once you pass those famous iron gates you are transported back into the world of the Ewing family.
Jock's car, Miss Ellie's kitchen, JR and Sue Ellen's bedroom, with the most ostentatious en-suite bathroom you could imagine, Bobby's board room, Lucy's bright yellow boudoir, the Ewing dining room and, of course, the swimming pool, around which most of the action seemed to take place . . . it's all there as if frozen in time.
In 1992 a wealthy Arizona businessman and fan of the show bought SouthFork and set about preserving it as a tourist attraction. And he has 'forked out' fistfuls of dollars to make sure visitors are not disappointed, with daily tours of the house and ranch land guaranteed to excite even the most ardent fan.
When the TV series was given a re-boot in 2012, with some of the original cast reprising their roles, SouthFork itself was again at the centre of things with the ranch being used for filming rather than some Hollywood back lot.
In fact JR himself, actor Larry Hagman, was back in his beloved city of Dallas re-enacting the iconic role he cherished most when he lost his battle with cancer in November of that same year.
You may not think so reading this, but there is much more to Dallas (or the Big D as the locals fondly refer to it), than assassinations and soap star assignations. The city has a colourful historic district, where you find lots of funky bars and restaurants, a thriving arts district, ingenious green open spaces and some of the best museums in the whole of America.
Oh, I nearly forgot, if you want to look like a real Texan when you get back home call in at Wild Bills Western Store in the heart of the historic district and kit yourself out from an amazing array of stetsons and boots. Yeeeha!
Direct flights to Dallas with DialAFlight begin at around £500pp.
Give one of our experienced travel advisors a call on 0844-251-0151 and we can work out the perfect itinerary for your trip to Texas.