Host Seth Rudetsky chats with and accompanies Stephanie J. Block and Sebastian Arcelus as part of the Seth Concert Series on Sunday, February 14th, at 8 p.m.; encore Monday, February 15th, at 3 p.m. Tickets are $25 at thesethconcertseries.com. Block most recently starred in The Cher Show, winning a Tony, while Arcelus is best known for his roles in Madam Secretary and House of Cards.