What's the Kennection? #384

In 1983, what TV soap took a full day to shoot its famous lily pond catfight between Linda Evans and Joan Collins?

Which of the six noble gases has a namesake museum in Las Vegas, enjoyed every year by 250,000 tourists?

In 2007, what band welcomed its new Filipino lead singer, a Steve Perry sound-alike named Arnel Pineda, with "Open Arms"?

Which of NASA's five orbit-ready Space Shuttles flew the fewest missions?

According to stadium rules, what kind of phone accessory is allowed at Dignity Health Sports Park outside Los Angeles, where an appropriately named NFL team has been playing?

What's the "Kennection"?