Here's part of an article by Carol Cadwalladr of the Guardian from 2018.
"Richard Corbett, the leader of the Labour party in the European parliament, explains how it works. “Farage turns up once a month and often what he talks about has absolutely nothing to do with what’s being discussed. You think, what’s going on? And then you realise it’s got nothing to do with the parliament. It’s just for his social media output. Sometimes he doesn’t even hang around for the answers. Two minutes later, he’s back on the Eurostar and gone.” (Statistics for voting and attendances show Farage is ranked 738th out of 751 MEPs for productivity.)
It’s these YouTube set-piece speeches, pumped via the site’s algorithm to the phones and laptops of an entirely new generation, that are Farage’s power base now. And, at the centre of this, is RT (formerly Russia Today), the Kremlin-controlled English-language broadcaster. RT made Farage a YouTube star."
Gives a bit of background to Farage's Euro parliament performance.