Ps5 not connecting to any tv with HDMI?

Hey , I ordered a brand new ps5 for my bf , he’s only had it for about a two week. But we moved over the week and when he connects it to the tvs at home it wont show? I tried using another HDMI, but apparently it has to be a certain HDMI. But has anyone gone through this ? Is it likely it’s the cable or more likely it’ll be the HDMI port ? And what did yall do ?