What fee are you talking about. The only fee I’m aware of is $5/month for the 2-week guide.
I believe you are talking about the TV Guide Data Service subscription, which I believe also allows streaming to select devices inside your house.
It’s part-of/included with the TV Guide Subscription
Tablo DUAL HDMI OTA DVR | Over The Air (OTA) DVR | Tablo
However, Tablo DUAL HDMI also offers the flexibility to stream live and recorded TV to additional televisions within the home via select streaming devices and smart TVs with an active TV Guide Data Service subscription.
Right there on the product page. Although it’s not as clear in the blog announcement…
(I can’t say with certainty that point was always clearly made, but was easily found early on)