Biscuits and gravy done right is awesome.
Done wrong is well what is worse than awful.
Oh and BT, SOS is hamburger meat in gravy.
I agree that biscuits n gravy has to be done well, or not done at all. From looking at the video that morning glory posted, it sounds like that one was done poorly. Under seasoned (if it was bland), and probably not good sausage.
However, SOS is definitely creamed chipped beef, not hamburger, although I'm sure people modify the recipe to use hamburhger nowadays. Probably even cream of mushroom soup since that is a popular shortcut as well.
SOS an old thing from the military during WWII. My father talked about it with particular disgust.
The soldiers would get this horrible dried, pressed beef in their rations, so in order to make it palatable, they would cook it in milk if they could obtain some from a farm. Served on a shingle (a ration cracker, or toast if you could get it).