longest running tv series on now
In spite of its enduring presence, however, Law & Order is not the longest-running TV show of all time. If you take the number of seasons (or the length of time a show has aired) as your benchmark, NBC's Meet the Press is the winner, with 66 seasons and 67 years on air [source: Today ]. But in order to determine which is the longest-running show, you'll also need to consider how you want to define the term TV show..