NBC counts on Junior Nation to flock to NASCAR broadcast

Dale Earnhardt Jr. has been pretty busy for a retired guy: Wife Amy gave birth to their first child, he hit the slopes in South Korea and raced scooters against Jimmy Fallon.

Junior Nation can keep tabs on Earnhardt's active lifestyle — from home restorations to Super Bowl sound bites — though his own podcast.

NBC Sports has banked on that fervent fan base to flock to its NASCAR broadcasts when Earnhardt makes his season debut Sunday at Chicagoland.

Earnhardt is ready to trade a firesuit for a suit and tie in the booth.

"There's so much to learn and absorb, and this is going to be an incredible 21 weeks of education for me," Earnhardt said.