Approximate History of Course Lecture Video at Harvard 1973 Science Center opens with five large lecture halls and central media service. Immediately thereafter video recording of lectures begins. Lectures are erased after ten are taken and the tape is reused. Taped lectures available to students to view in the library only Video taped lectures transcribed and displayed in course web sites Anystream used for direct digital transfer in the Science Center Course video aggregated on my.harvard portal Today: Science Center direct transfer. Off-Science Center site recording still done on tape.

Collections of Instructional Online Streaming Media Courses with Online Lecture Videos Fall Fall Fall Fall Spring Supplementary Instructional Online Media In addition to the 59 courses using online lecture videos in Spring Term, 2005, ICG also serves 84 collections of “permanent” streaming media for courses outside of ongoing lectures. There is some, but not much overlap between the courses using lecture video services and those with permanent online media collections. Inversely to the use of online lecture video services, these collections are for courses predominantly in the humanities and social sciences. In Fall Term 2001, the number of permanent collections was 3. Source: ICG

Number of Video Recording Jobs Through Media Technology Services Total, * * As of April 4, 2005 Source: Media Technology Services

The Limits of Our Online Lecture Video Capacity Have Been Reached Demand has exceeded available capacity. –Without additional resources, limits will need to be set on the availability of these services to faculty next fall. Key capacity bottlenecks –Dependency on tape rather than direct-to-disk captures. Lack of equipment for direct-to-disk capture for any course that meets outside of the Science Center lecture halls. –Tape adds cost, and, minimally, doubles the amount of time required to get files into the encoding process. –Responsive end-user support and consultation One person (ICG’s Geoff Maness) handles complex system maintenance and development in addition to the increasingly important and demanding requirements of direct end-user support and consultation.

Courses with Online Lecture Videos: Number of Students Enrolled by Graduation Year Spring Term, 2005 Graduation YearStudents (20%) (23%) (27%) (28%) NA89 (2%) TOTAL4326 Source: ICG and FAS Registrar enrollment data

Courses with Online Lecture Videos: Number of Students Enrolled on One or More Courses Spring Term, 2005 Number of Courses Students (64%) (28%) 3 or more371 (9%) Source: ICG and FAS Registrar enrollment data

Online Video Services: Overview, Spring 2005 Enrollment –Average enrollment for courses using online lecture videos: 114 Fall 2002: 165 –Total number of courses: 59 Physical/Natural Sciences: 29 (49%) Core: 25 (42%) –Science: 11 –Social Analysis: 2 –Quantitative Reasoning: 5 –Moral Reasoning: 2 –Literature and Arts: 4 –Historical Study: 1 Social Sciences: 5 Source: ICG

Overhead Costs of Capturing Lectures to Tape Number of courses captured on tape is increasing. –Spring Term, 2005: 20 –Number captured on tape, Fall Term, 2004: 10 Spring Term, 2004: 4 Minimal per-term cost for 20 courses captured to tape: $24,300 This includes only lectures –Excludes rapidly rising demand for taping of supplementary sessions, such as review sessions. –Total overhead, per course, per term: $1215 Approximate overhead of tape-to-disk transfers: $900 –Operator $20/hour for approx. 45 hours per course Total cost of tapes per term: $315 –Number of tapes per course per term: 45

Online Video Services Spring Term, GB of permanent media holdings –81 course collections –24 GB, Fall Term, GB of lecture holdings (Fall 04) Source: ICG