I watched the Torment of Tantalus episode #9 in the Stargate first season.

This episode covered perhaps the first use of the gate by the US military. An early film reviles to Daniel Jackson( a character in the TV show) that someone had gone through the stargate in the 1940's. That character Ernest Littlefield is found and they bring him back. They encounter a library or book with the combined knowledge of four alien races. They get back through the gate by powering the gate with lightening because they find the dial home device(DHD) broken and then lose it due to storm damage.

I have fourteen epsiodes to still watch in the first season.