KathyMM :
The tv is a Sony 49" Class 48.5 Diag Led 2160P Smart 4K Ultra HD TV High Dynamic Range.
On the back of the tv is a what and black input that indicates is for the sound There's really no other places to put the cables too. It's actually really strange that the new TV's don't have so many cables like the old TV's
Newer TV's have mostly dropped Analog connections.
I still don't know what model TV it is, just the specs that you've given.
If you go into the menu/options, there should be a sub menu that tells you about your TV.
Let us know the Model# so I can see what outputs it has.