Not necessarily. A surround mix is intended for a particular channel layout and must be reproduced or downmixed correctly. With television speakers, a compatible stereo track may give clearer results than a poorly handled multichannel path, especially if dialogue is being lost or misbalanced.
Understand the layout
Stereo carries left and right channels. A conventional 5.1 layout adds other speaker channels and a low-frequency effects channel. The decimal notation does not describe an internet bitrate or a quality score. More channels create more placement possibilities, but they do not repair a weak recording or an incorrect speaker setup.
Check the selected track
One programme may offer stereo, surround, commentary and multiple languages as separate choices. Verify the active selection during playback rather than relying on the catalogue badge. If voices are missing while music remains, compare a stereo version before changing every television equaliser control.
Listen for balanced reproduction
In a properly configured system, speech should remain intelligible at a comfortable listening level and effects should not disappear unpredictably. If a receiver is set for a centre speaker that is absent or disconnected, some mixes can suffer badly. Consult its speaker configuration and use its own test function where documented.