These days a college education doesn’t get you as far as it used to, though it comes in handy for solving crimes, apparently. The hero of the two-hour suspense drama “Katei Kyoshi ga Toku” (“Private Tutor Solves the Case”; TBS, Mon., 9 p.m.) is a private tutor who attempts to unravel a murder mystery by means of algebra.

Natsumi (Rei Kikukawa) is a poor college graduate working for a temp agency that dispatches private tutors. Her boss, Saeki (Kotaro Koizumi), a former policeman, sends her to tutor Eri (Riko Yoshida), a fifth-grader. Natsumi is intimidated when she goes to the house and discovers that the family is rich and Eri is a popular child model. However, she also thinks there is something strange about the family, a feeling that’s borne out when Eri’s stepmother is found on the property bleeding from a head wound. Was it murder or an accident?

It’s not enough that a science program explain the mysteries of nature: There has to be a gimmick. On the variety show “Jintai no Nazo wo Tokiakase” (“Explain the Riddle of the Human Body”; Nippon TV, Tues., 9 p.m.), a research institute is hidden away in the basement of a cafe, where scientists attempt to answer people’s questions about their own bodies. The answers are then dramatized.

The areas explored this week include common intestinal bacteria that make it easier for a person to become fat; the front lines of regenerative medicine; methods that can help you become smarter faster; and the truth behind the so-called sixth sense. Announcer Akira Fukuzawa is the host.

CM of the week

Acom: Consumer-credit company Acom has a global presence, as pointed out in a new series of TV commercials. Announcer Mari Watanabe sits at a news desk reporting on “Acom businesses” in different countries using live feeds from those businesses, which appear to be genuine: an accessories store in Turkey, a coffee plantation in Vietnam, a computer-electronics retailer in Mexico and a used-car dealership in Canada. Most of the segments use familiar images so that the viewer can instantly identify the country depicted: Turkish people wear lots of jewelry, Mexicans sport sombreros and in Canada the weather is cold. What do they all have in common? They can sing the Acom jingle, though not necessarily in tune.

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