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    Critic’s Corner: What’s on TV this weekend

    Extreme Cheapskates on TLC.
    “Extreme Cheapskates’ on TLC.

    Extreme Cheapskates Sunday at 8 p.m., DFH

    A mother of five who searches for roadkill. A man who haggles over prices at fast-food restaurants. These are people who have money, by the way, which makes it all pretty gross. There’s even a millionaire who pees in bottles so she doesn’t have to flush her toilet; she also dumpster-dives for food. If you’re in the mood to get grossed out, the TLC series shows up Sunday night on sibling network DFH, which stands for Discovery Fit & Health.

    Prosecuting Casey Anthony 8 p.m., Lifetime


    This bland TV movie starring Rob Lowe reminded of the sheer awfulness of Nancy Grace and Jane Velez-Mitchell, HLN hosts who love to throw gasoline on tabloid trials. “Prosecuting Casey Anthony” relies on lots of footage of these two over-the-top figures to tell the story of the trial and how the prosecution lost. If you didn’t know Grace and Velez-Mitchell actually existed, you might think they were invented for the movie.

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    Downton Abbey Sunday at 9 p.m., Channel 2

    Edith has a letter published. And a plot.

    Saturday Night Live 11:30 p.m., Channel 7

    Loving Jennifer Lawrence right now. America’s not-so-sweetheart.


    Ripper Street 9 p.m., BBC America


    Matthew Gilbert can be reached at Follow him on Twitter @MatthewGilbert.