pbs teacherline credits

has anyone heard of this?
http://teacherline.pbs.org/teacherline/modules/tlcatalog.cfm
i guess they offer graduate credits for these courses, tell me what you guys think.

 

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It looks a lot like the learner.org site but more expensive. The fee is for the class, and if you want grad credit you have to pay an additional fee, so the 2 credit class lists for $299 and then the fee of $130 makes it less of a bargain in my opinion. You would have to have access to pbs (a problem for me since we are a tv-free family) whereas learner.org allows you to stream the videos at your convenience.
A pet peeve of mine, why are the "grad course" course numbers all 100/200 level?? MAT220 for example. How on earth would that fly to transfer as grad credit somewhere? Maybe if you pay the fee they change the course number, but it doesn't say so- I am just wondering?? Maybe someone here knows more about them?