What version HDMI in my Panasonic TH-42PC77U

[blupassat]

I have a Panasonic TV model TH-42PC77U with 2 HDMI inputs.
What version HDMI on this tv?
What recommendations for expanding the number of HDMI ports?

 

[hang-the-9]

You can't add more ports to a TV. Going by the time that TV was made, maybe 2010, it would have HDMI 1.4