How to tell when my Roamio last rebooted?

I thought there was an entry somewhere that showed the number of seconds since the last reboot. For the life of me I can't find it. Maybe I'm thinking of our old TivoHD and not the Roamio? I looked everywhere and the closest I came was the number of seconds since the cable card restarted. Kinda the same thing??

Is there a better way to tell when the Roamio last rebooted?

Paul