Yes, we replaced all of the Seiki TVs with Smart TVs (one TCL Roku TV, one Samsung Smart 40 4K TV and the outside one is a Vizio Smart TV.) We also replaced the HDMI switchbox with a true 4x4 matrix switch from Amazon. That helps with HDTV and 4K signals as well as we can have multiple inputs to multiple TVs now.
This is the switch we got:
https://www.amazon.com/AVENK-Matrix-...C5J2701136R0YZ
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