If you're looking for a drama about a high school teacher that's a little more intense than Welcome Back Kotter (even more intense than Head of the Class!) then check out Breaking Bad, which stars Bryan Cranston-- the bumbling amiable dad from Malcolm in the Middle, as a regretful chemistry teacher who is diagnosed with stage 3 lung cancer and needs to resort to cooking meth with a delinquent ex-student (Aaron Paul) to pay the bills and leave something for his family, as his wife, Anna Gunn-- from Deadwood-- is pregant and they also have a crippled son . . . and to add to the fun, Cranston's brother-in-law is a DEA agent; it sounds like a grim show and at times it is, but it's also deeply and darkly funny and there's chemistry lesson in every episode (hydrochloric acid will melt a dead body to jelly but it won't eat through a plastic container!) and so I give it nineteen Erlenmyer flasks out of twenty.