The naked gun trilogy is a masterwork of slapstick comedy. While there are some jokes that are very much not in vogue today, the trilogy is a wholly enjoyable experience. It is a bit weird going back to these movies though because OJ simpson plays a recurring character. To be fair to OJ, his performance as Nordberg is great. It's just weird seeing him from the pre-murder trial era.
Anyways back on topic; Leslie Nielsen is amazing as always.