Looks to me that is a "emitter follower" amplifier stage. Such a amp cannot have a higher output voltage then the input voltage, however it can have increased current drive for what is wired to the output connectors, so it's still classified as an amplifier circuit, it just supplies current amplification not voltage amplification. Some might call it a 'buffer stage'. Driving a 75 ohm circuit load is not a trivial matter and such emitter output circuits are common in the video world.
Lefty