LOS ANGELES — Elon Musk moved a cryptocurrency’s value and TV ratings with his “Saturday Night Live” appearance. Anchor Michael Che reacts to Ostertag’s convoluted description of dogecoin as the future of currency with deep skepticism, calling it a “hustle.” Musk in character echoes the sentiment: “Yeah, it’s a hustle.” In prime-time last week, CBS was the most-watched network with …