A professor may tape "news or news commentary programs" at the time they are broadcast and show those tapes in the classroom without the copyright owners' permission. This copy can be shown an unlimited number of times for up to a year, after which the copy must be destroyed or royalties are required to be paid to the Educational Rights Collective of Canada (ERCC). A News program reports local, regional, national or international events as they happen. Examples would include BBC World Report, the National (first 30 mins) or CTV news.
A News commentary program contains discussions and interpretations of the news with unscripted responses such as Larry King Live or CBC's As it Happens.
A single copy of other types of programs (e.g. sports, movies or documentaries) may be taped and retained for evaluation or review purpose (to determine the educational value of showing in class) for up to 30 days. If the copy is shown, it is up to the professor to pay the royalty fee to the ERCC set by the Copyright Board. Failure to do so infringes copyright.
Check the Copyright Board Web Site for details on educational tariffs: http://www.cb-cda.gc.ca/tariffs/certified/educational-e.html or the federal regulations surrounding record keeping: http://www.cb-cda.gc.ca/info/regulations/index-e.html.
Further details concerning off-air copying for educational purposes can be found on the Educational Rights Collective of Canada Website: http://www.ercc.ca/ercc_welcome.html.