Hello: on Roku's own channel (roku), watching "Columbo", a popup msg appear about 15 min into the 1.5hr show, stating something like: "It looks like you are receive ads every 5 minutes [true]. [push this button to] check/optimize the network to reduce the frequency of ads." The other button said something like: "leave as is." I left as is, because we were watching the show & who knows if that would have stopped while the "fix" was going? And, I wondered if there would be a fix or another button would appear to "upgrade" the show for a fee. Does anyone watch Columbo & how can we reduce the # ads? Thank you.