A field test was conducted to examine the efficiency of a paper-and-pencil television diary for collecting viewer evaluations of public and commerical television programs. Six hundred individuals in Boston, Massachusetts, kept qualitative viewing diaries for one week. The results indicated high and enthusiastic cooperation by the total sample. The diary was determined to be easy and convenient to use, with acceptably low nonresponse rates on each of the four qualitative scales used to evaluate programs. The resulting profile for public television lent credence to the notion that public television programs cannot and need not be evaluated solely on the basis of audience size. In addition, the data collected proved highly relevant to program development, scheduling, promotion, and evaluation, both for the local Boston station and for stations at the national level. Sample pages from the diary are appended. (Author/FL)