EllGee

Adobe have announced Flash is depreciated and will be killed in 2020.

Silverlight is deprecated. It is not available for Chrome or Edge and is unsupported in  Apple's Safari and disabled as malware by default, so forget about it working in a niche like smart TVs.
Best plan is to lobby the website owners to dump it.

I tried many as we have lots of choice at work without buying them, no jump drives worked, even SAMSUNG T1 256GB.  
Only spinning disks or SSD mounted in a 2.5" case.