Blank airplane banner billowing along without anything pulling it!Saw same on Program called Origins Unknown Alien Present on Earth

Around 2PM 1/10/22 I turned onto Bell RD east from 51rst Ave ! Saw what looked like blank airplane banner without anything pulling it, going south slowly! My best guess was it was flying south over I-17 about 1/2 mile up and about the size of a long airplane banner. It was at my upper left corner of windshield when first noticed. Pulled into parking lot and watched it fly south until it disappeared into the distance, still moving slowly! Had no idea what I saw until I was watching Origins Unknown: Alien Presents On Earth at 9 minutes in and saw the same exact thing on program they called it snake shaped UFO they said it has only been seen the last year or so! I will post video recorded from TV so you'll know better what I saw I didn't see the curly on in the video mine was the straight billowy one. Wish I hadn't forgot my phone!