Crafts seen by many in PA media covers

Driving car with girl friend- possible missing time. Arrive at parents at 8:30 p.m. thought it was 7:00??? Get out of the car and hear what sounds like a vaccum cleaner running, focus to find sound is comming from sky, 45 degrees in the southeastern sky are 3 balls of light flying in formation. The crafts had no visible wobble or they seemed unaturally steady to be flying in such a tight formation. I say "there it is" girlfriend say's "quick lets go in the house" she runs to the house. I walk in and see my parents sitting watching tv, I don't tell them cause I feel that they are very happy and don't want to confuse or mess with their reality. Seen by others, reported in the local paper. Classified as a UFO
Date is approximate.  PD