 Complete the following phrase:  In 2016, Edwards moved to Channel 4 to continue commentating on Formula 1, again working alongside David Coulthard. The move came after the BBC terminated its TV rights agreement early, and Channel 4 picked the deal up. Edwards stepped down from his commentary role at Channel 4 after the conclusion of the 2020 season. He was succeeded by Alex Jacques. However he subsequently filled in for Jacques at the 2021 Styrian Grand Prix and 