Instruct: Classify the given review as either positive or negative.
Query: Does exactly what it's supposed to, cheaply

I use this backwards since we have two devices that use the coax cable connection on the back of the TV (the cable TV plus our old Atari). Attached the single end with a 2' cable to the back of the TV and left the double (splitter) end in front so we can change out the Atari and cable TV at will. Works fine and does not appear to degrade the signal of the HD channels. For $3 what are you risking? Nothing, really. Try it out and see if it works for you.