question: How many seasons did the host of Inside the Vault play for the National Football League?
answer: eight seasons
context: Title: Derby di Sicilia
  Passage: The Derby di Sicilia or Sicilian Derby in English, is a local derby between Italian football clubs Calcio Catania and U.S. Città di Palermo.  Catania and Palermo are the two main cities on the island of Sicily, and the teams are fierce rivals.  However, they have seldom played each other within the Italian football league system, because in many seasons they have played in separate divisions of the league.  The first time the Sicilian derby took place in the context of league football was on November 1, 1936, at Palermo in Serie B level; it ended in a 1–1 draw.  The Sicilian derby has been played 10 times in Serie A: Catania leading their rivals by 5 victories to Palermo's 4; the other occasion was drawn.  The teams have also met in local Sicilian competitions, and friendly matches.
  Title: Cris Collinsworth
  Passage: Anthony Cris Collinsworth (born January 27, 1959) is a former professional American football player who was a wide receiver in the National Football League (NFL) for eight seasons, all with the Cincinnati Bengals, during the 1980s.  He played college football for the University of Florida, and was recognized as an All-American.  He is currently a television sportscaster for NBC, Showtime, and the NFL Network and winner of 15 Sports Emmy Awards.  He is also the owner of Pro Football Focus, a sports statistic monitoring service.
  Title: 2017 FA Trophy Final
  Passage: The 2016–17 FA Trophy Final was the 48th final of the Football Association's cup competition for teams at levels 5–8 of the English football league system.  The match was contested between Macclesfield Town and York City.  The final of the FA Vase was played on the same day at the same venue for the second year running.  Both matches were televised in the UK on BT Sport.  York City won the final 3-2 and became the second club in as many seasons, after Halifax last year, to get relegated from the National League and then win the FA Trophy in the same season.
  Title: Inside the Vault
  Passage: Inside the Vault is an American news magazine television show hosted by Cris Collinsworth that focuses on today’s American man.  The show debuted online on February 3, 2011, and February 4, 2011 on WGN America.  After its first season no plans were announced for a second season.
citations: Inside the Vault Cris Collinsworth