After watching The Terminator and Terminator 2, I can't find any reference to Schwarzenegger's Terminator being called the "T-800". Yet I distinctly remember in promotional material, computer games, etc. at the time, he was called the "T-800". (He refers to himself as a "Cyberdyne Systems Model 101" at one point)

So my question is, where is it mentioned that he's called the "T-800"? Please limit the answers to the first two movies - while this name/sku may be mentioned from the third movie onwards, he was definitely being called the "T-800" by sources (out-of-universe) before then.