Yes, as long as your TV has either a digital optical, RCA or AUX (headphone) output.

• This is a TV feature and its availability depends on your TV design. Please check your TV manual or contact the manufacturer to ask whether the TV speakers can work or not when the audio output is activated.
• For most TVs, the TV's internal speakers and an external audio device can work simultaneously. Such as, for some newer LG TVs, when do optical audio connection, you can set the “Sound Out” to “Internal TV Speaker + Audio Out(Optical)”. And for some newer Samsung TVs, you can enable this feature by selecting “TV Speaker” from the TV Sound Output lists.  

However, for some old TV models , the built-in speakers might not work if you choose to use an external audio device (e.g., speaker, headphone). If your TV is like this and you only watch programs from one fixed AV device, such as cable box or STB etc, just hook up the Simolio unit to that device for enjoying TV with your family together.