HIMYM is pretty good(Better than BBT), but I am somewhat soured on the premise and I wish they get it over with already, which includes ending the series. I find Ted an extremely unlikable whiney douchbag with "problems" I wish I have. Barney Stinson (NPH) might be a womanizing, seemingly amoral, sleazy bastard, but he is our magnificent bastard. It helps that NPH is gay, affable and is parodying himself.
I ogle Alyson Hannigan, but I ogle Cobie Smulders more, but only slightly more.
The BBT was never experimental unless you consider nerd black face experimental. There isn't any actual character development outside of who is sleeping with who. They did shake things up bit by adding more females in what was nominally a sausage fest. Melissa Rauch (Bernadette Rostenkowski) was a good addition to the cast as I found Kaley Cucoo (Penny) surprisingly unattractive despite having a nicer figure. The BBT also effectively resets at the end of each episode, they do call backs, like with the Mars Rover, but it's like how in the Simpsons how they do call backs. The laugh track is only the most blatantly wrong thing about this show pointing out each "joke" magnifying how unfunny they are. If I want some real nerd comedy or something consistently funny, I would go watch Futurama which did nerd comedy light years ahead of time.
30 Rock had a massive problem for a while where everything thing was about Tracy Jordan and I hate his guts. It's not helped by the fact the actor pulls the same garbage outside of 30 Rock. Now the problem is that it's no longer about a comedy show about making a comedy show, but about each character's neurosis and the exponential amount of Flanderization happening. The one thing that really worked for a while was Tina Fey's relationship with Matt Damon (Carol). Alec Badwin has always been golden in the series though.
I can't stand shows like Law and Order, besides being boring as hell, the whole ripped from the headlines level of writing can't compare to actual headlines, which is depressing. I do watch shows like NCIS and it's counterpart NCIS L.A, but mostly for the unintentional comedy factor especially with how everything about NCIS LA has to be some international incident even if it's just some local crime. The number of Arabs they shoot is borderline racist if it wasn't for the fact they have a ridiculously high body count that would make Rambo blush with envy. NCIS at least has the decency to stay sort of grounded in "some" police work if it wasn't for the absurd story arcs they have running through a given season. All that is assuming your willing to buy into the whole authoritarian police state ideal both shows push to a level matching propaganda where the people using the tools are always just people and terrorists are so sophisticated that suspending civil rights is always the only option.