Figure out the length you'd like to make your stand. Measure the wood using a tape measure and make pencil marks for cutting.
Use a circular saw to cut the wood down to the correct length. If you need a wide stand because the base of the TV is large, you'll want to cut a few pieces to make more of a platform. We cut three pieces.
Use a table saw to cut the rounded (long) edges of the wood down flat so that they can be glued.
Make one solid riser piece by adding wood glue to the long ends of the boards and then clamping the pieces together. Let dry overnight.
Route all the top edges of your riser. Sand if necessary and wipe away the dust.
Stain the wood using the stain color of your choice and then a rag. Let dry.
If desired, coat the riser with polycrylic and let dry.
Our piece didn't need legs, but at this time you can add them to finish if desired.