Complex sentence: He is credited as the host of television's first game show, the DuMont Network's "Cash and Carry" in 1946; the first person to ever host a telethon, and even the first person to do a TV commercial.
Split into simpler sentences: He is credited as the host of television's first game show, the DuMont Network's "Cash and Carry" in 1946. James was the first person to ever host a telethon and even the first person to do a TV commercial.