DIY tv behind bathroom mirror article

I researched this a bit and found that the inexpensive 2-way mirrors were made of acrylic, not glass. They scratch easily. Also read that the coating on acrylic is easily washed off. Must use care when cleaning. No amonia producs. I ended up not doing it because of all the gotchas.
In this application, the only thing on the other side of that mirror is a TV / computer monitor. Just something she can look at, nothing that can look back at her.