Without makes and model numbers we can't check what connections your gear has so you won't get a precise answer.
In general you would need to convert the type of audio output the TV has to the type of audio input the soundbar has.
Most likely your TV has an optical audio output. Check the TV manual on how to configure your TV to use it.
If your soundbar only has an analog audio input (usually a 3.5mm stereo jack or 2 RCA jacks) then you will need an optical to analog converter.
If you were as "smart" as your TV you would check that both have compatible connections before you buy one to work with the other.
MERGED QUESTION Question from lrteacher63 : "Help hooking up rca sound bar"
lrteacher63 :
I have an Rca sound bar with no hdmi hook up. How do I connect it to my Roku tv model #LC-32LB4816 I only stream WiFi thru spectrum and I have no clue how to get this to work, or what connections to buy! Please help!
Without makes and model numbers we can't check what connections your gear has so you won't get a precise answer.
In general you would need to convert the type of audio output the TV has to the type of audio input the soundbar has.
Most likely your TV has an optical audio output. Check the TV manual on how to configure your TV to use it.
If your soundbar only has an analog audio input (usually a 3.5mm stereo jack or 2 RCA jacks) then you will need an optical to analog converter.
If you were as "smart" as your TV you would check that both have compatible connections before you buy one to work with the other.