Power spec wise there is no issue.
But looking at the operation TV and receiver are electronic components which it should be precise on change over /cutoff period/spike so its bit risky using it( cant trust on the operation which is suppose to be done by a stabilizer).IMO
Note - For Micro wave oven /tread mill /Washing machine does not required that much CARE compare to TV and Receiver( As mentioned by manufacturer it is designed/Application recomemended to use for Microwave oven,Treadmill,Washing machine which is mainly working for motors )
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