John V. Sullivan
The Parliamentarian of the United States House of Representatives manages, supervises, and administers its Office of the Parliamentarian, which is responsible for advising presiding officers, Members, and staff on procedural questions under the U.S. Constitution, rule, and precedent, as well as for preparing, compiling, and publishing the precedents of the House. The Parliamentarian is appointed by the Speaker of the House of Representatives without regard to political affiliation and solely on the basis of fitness to perform the duties of the position. Wikipedia*
On the C-SPAN Networks:
John V. Sullivan has one video in the C-SPAN Video Library; the first appearance was a 2008 House Committee.