Tonight on PBS, Bill Moyers Journal will focus on the LBJ telephone and office tapes created during the escalation in Vietnam, in a program called "Hearing History".

Bill Moyers considers a President’s decision to escalate troop levels in a military conflict. Through LBJ’s taped phone conversations and his own remembrances, Bill Moyers looks at Johnson’s deliberations as he stepped up America’s role in Vietnam.

President Lyndon Johnson’s taped conversations are a treasure-trove for both historians and current policy makers. On the JOURNAL, Bill Moyers explores the tapes to review Johnson’s deliberations as he stepped up America’s role in Vietnam. Some of the names on the tape, such as Robert F. Kennedy, will be familiar to Americans young and old — others less so.

The origins of the Vietnam War lie in 1945, when the British ignored Ho Chi Minh’s declaration of independence and restored French rule to the country.

After a protracted conflict with Ho Chi Minh’s nationalist forces and a massive defeat at Dien Bien Phu, the French left Vietnam in 1954.

During the Cold War many foreign policy analysts subscribed to "The Domino Theory" — which contended that should one country come under communist rule, its neighbors were likely to follow suit. President Eisenhower, worried about the spread of communism, sent U.S. advisors to train forces in South Vietnam in 1956, and President Kennedy increased American forces significantly, with 12,000 U.S. military advisors stationed in Vietnam by 1962.

But it was under President Johnson that the U.S. escalated the conflict to a full scale war.

Bill Moyers served in several roles in the Kennedy and Johnson administrations, among them stints as LBJ’s chief of staff, and LBJ’s Press Secretary. For my money, it will be difficult to find anyone who can speak more knowingly about White House events during the Vietnam War.

There is a timeline for events in Vietnam, paired with clickable audiotapes of LBJ, on Moyers’ website, as well as a Who’s Who of the Vietnam escalation debate.

Must. See. Tee. Vee!