Recently a TV critic at another newspaper wrote a Web piece about the shows she liked to watch when she &ldquo;wasn&rsquo;t working.&rdquo; Excuse me? Maybe I&rsquo;ve fallen victim to the occupational hazard of blurring work and play, but I can&rsquo;t turn that critic switch off. It&rsquo;s kind of like David Letterman&rsquo;s genius switch, although apparently Dave <em>did</em> manage a workaround to that.</p><p>Still, I&rsquo;ll concede the point: There&rsquo;s a lot we see as professional TV watchers that we don&rsquo;t write about. And the shows that usually get overlooked are ones we&rsquo;ve already covered, those long-running series that we assume our readers have already made up their minds about. This column is devoted to four of those.</p><p><strong>&bull;&ldquo;Mad Men&rdquo;</strong> airs its season finale at 9 tonight on AMC. I don&rsquo;t know what I have to say to get You People to start watching this. Based on the ratings it has been getting this season, fewer than 2 million people are likely to tune in to watch Sunday&rsquo;s finale. (My friends at TVBytheNumbers.com point out that a late-night repeat of &ldquo;That&rsquo;s So Raven&rdquo; gets about a million more viewers than a &ldquo;Mad Men&rdquo; premiere in prime time.)</p><p>Quite simply, there&rsquo;s nothing like &ldquo;Mad Men&rdquo; on TV today. I remember how much I enjoyed the first season, with its winking re-enactments of 1960s marketing techniques and hazardous lifestyle choices (smoking, unprotected sex, playing with dry-cleaning bags). </p><p>That&rsquo;s almost all gone now, replaced with a soap opera where everyone, it seems, is either entangling or disentangling from relationships licit and not. And you know what? I love it even more.</p><p> It&rsquo;s almost as if Matthew Weiner and his merry band of writers knew exactly when to dial down the social critique, when the audience felt attached enough to Don and Betty Draper and everyone else to follow them anywhere. </p><p>My favorite character on the show has always been Roger Sterling, the aging playboy so effortlessly played by John Slattery. What the writers have done with Roger this season &mdash; turned an inveterate skirt-chaser into the show&rsquo;s moral conscience &mdash; has been nothing short of magic.</p><p><strong>&bull;&ldquo;Sons of Anarchy&rdquo;</strong> is in the middle of a crackerjack second season, with episodes airing at 9 p.m. Tuesdays on FX. Katey Sagal, the onetime sassy Alice to Ed O&rsquo;Neill&rsquo;s Ralph Kramden on Fox&rsquo;s &ldquo;Married &hellip; With Children,&rdquo; is on her way to an Emmy as the best actress working in television.</p><p> If you can stomach more than the usual amount of TV mayhem, this retelling of &ldquo;Hamlet&rdquo; in the hamlet of Charming, Calif., is well worth catching up with. </p><p>Now is a great time, because Tuesday&rsquo;s 90-minute episode marks a crucial moment in the internal war that has been brewing inside SAMCRO, the motorcycle gang that has treated Charming for three decades as its small-town fiefdom for gun-running and mostly peaceable living.</p><p> That has been disrupted this season by a mall developer, of all things (played by smooth-talking Alan Arkin), who has figured out how to drive a wedge between SAMCRO leaders Clay (Ron Perlman) and Jax (Charlie Hunnam).</p><p> All the while, Clay&rsquo;s wife and Jax&rsquo;s mom, Gemma (Sagal), has been keeping a secret from them both. It all comes to a head this week, and I won&rsquo;t spoil a thing except to say that at the end, there wasn&rsquo;t a dry eye in my house.</p><p> (If you&rsquo;re new to the show, you can catch last week&rsquo;s episode at 10 tonight on FX.)