9/25 Episode Discussion - "Dishonorable Proportions" - *spoilers*

I watch this show only occasionally. From what I've seen, I don't this they have the "Foundation Challenge" every week, but only sometimes? Is that right or am I missing something?

Thanks.

That challenge has not appeared on every show. Perhaps they leave it out when they need more time, or the Spotlight challenge is a more complicated design. The Foundation Challenge is also used to grant bonuses like immunity, sometimes.