Can I connect TV Speakers to an interface and use them as stand alone?
Yes.  It is called an amplifier. Match the Impedance and Wattage of the speakers for best performance. Thats normally written on the speakers inside that plastic. 

A classic Class D amp would work,  but there are millions of types available. 

The connector is unimportant here,  but it looks like a standard JST type connector, likely 2mm between pins. Cut them off and solder directly.