I'm not aware of any way to purchase the "simple" remote as a stand alone product. Its probably available direct from Logitech, but I haven't researched that.
The remote is RF only. It has no known IR capabilities. You will need to run the included IR emitter cable from the hub to your TV. I've included a pic below of mine. My media closet is in the room behind the wall that the TV is hung on. For that reason, I had to run cable through the walls. Since I already had cable there for the TV connections, I just fished the cable through that.
As you can see from the pic, the emitter does not have to be attached to the TV. Just make sure it has line of sight to the IR receiver on the TV.