I needed to replace an old, cheap small flat-panel TV that had begun to make an irritating hum.I didn't want or need a large TV for the space, and the 28" screen is perfect in my little study. The picture is sharp and Samsung put in a lot of ways to tweak the picture to suit your taste, the kind of content you view, and how the room is lit. The audio from the built-in speakers is only so-so. It's a bit tinny and muddy, and sounds rather muted, despite all the talk in the literature about DTS and Dolby. It may be partly due to the speaker placement -- they face downwards -- and the fact that I have the TV on a stand. Maybe the sound would be a bit better if it were wall-mounted with nothing beneath it. I don't care so much about the built-in speakers, since I'm using some external powered speakers that actually sound really good for their price.It was easy for me to set up. My DVD player connects via the component input jacks, my Roku player goes into the HDMI, and my simple powered speakers (like for a PC), plug into the headphone jack -- though with an adapter, I could use the headphone jack and hook it up to an amp or receiver for analog, or I could use the optical out to connect to the digital optical input of a stereo system. If I had two different HDMI devices -- like my old Dish receiver and my Roku -- I would have trouble, since my old receiver had no pass-through ability and both the Roku and Dish use HDMI. I'd have to buy a switcher at a relatively significant added cost, considering the cost of the TV. Since I rely on Roku now, I don't have that problem.I've noticed that there are some reviews that say that this TV doesn't have a headphone jack. It's oddly placed on the back of the TV (not the most convenient way of plugging/unplugging your headphones!), but it's there. Since I have speakers plugged in and not headphones, the placement is okay for me, but if you sometimes listen through headphones and sometimes through the TV's speakers, unplugging the headphones each time you wanted to listen though the TV's speakers could be awkward depending on how your TV is placed. If you have it mounted on a wall, it would be particularly awkward.I was torn between giving this four and five stars, because while the picture is great and I am able to do what I want with the set (have a DVD player connected via the component jacks, connect my Roku using the HDMI input, and have external powered speakers connected using the headphone jack on the back), I am not thrilled with the selection of inputs and outputs on this TV. Most televisions these days skimp on the available jacks. This one has only optical (digital) audio out and a headphone jack for output.I'm very grateful for the headphone jack, since many manufacturers don't even bother with that and only include a single digital output to send the audio to an external player or speakers. This means that anyone with older, but perfectly good, high quality sound systems cannot easily connect their system to the new TV. Fortunately, Samsung does include an analog output in the form of the headphone jack. This means that a) the audio output can be controlled using the TV remote (the digital audio output is a single level and the volume must be controlled by the audio equipment -- either a second remote or by getting up and manually adjusting the speakers), and b) the audio can be redirected to any sound system that takes the common RCA audio input by just using an inexpensive converter to convert the Left/Right plugs into a single headphone plug.If you have a lot of equipment that you want to plug into the TV and you have more than one device that you need to plug into an HDMI jack, you'll need to get inventive. Although the Samsung UN28H4000 does have two HDMI inputs, only one of them is a "true" HDMI jack. The other one is a DVI that only accepts digital input. This is fine if you are already hooking the audio up to another set of speakers, but not good if you need to use it for two different boxes that both use HDMI. If that's the case, you'll need to get an adapter that will extract the audio, and then you will have to send the audio to a set of speakers (or possibly to the single set of RCA audio inputs on the back of the TV -- not sure if that would work or not). Also, if you have an old VCR with plain composite output jacks and a DVD player with component jacks, you can't plug them both in at the same time, since Samsung uses one of the component inputs as the composite input.So, for input, without buying any adapters, splitters, or switchers, you can have one device that uses the full HDMI video & audio, one that uses just the video HDMI (such as a computer) and that plays its audio through something else, one that uses the coax input, and one device that uses either component OR composite input jacks. If you need more than that, you'll need to look into switchers or splitters, unless you have a device that can act as a pass-through for other devices.There's also a USB port which will do more than just display photos as a slide show. You can actually load videos onto a USB flash drive and play them. There are basic video controls such as you'd see on a DVD player, but nothing very advanced. You can sort the videos by folder, select a video, play it, fast forward, pause, rewind, etc. It works very well for plain-vanilla video playback, and I didn't find that the flash drive I used got very hot, though some drives might. I used a Samsung 64GB USB 3.0 Flash Drive Fit (MUF-64BB/AM) .Even very inexpensive, low-end flat panel TVs used to come with a myriad of input and output jacks up until relatively recently. Over the past few years, manufacturers have gradually begun to drop more and more options for consumers to use their TVs with other equipment.This is great for folks who make money on after-market solutions, but hard for consumers, especially any who might not realize that there are ways to hook up their other equipment with their new TV and so either junk the equipment to buy new, or return the TV and buy a size and model that they hadn't wanted simply in order to get the right number of inputs/outputs to use it the way they want to.Because the component/composite and coaxial jacks are also on the back of the TV, if you wall-mount it, you have to make sure that you have sufficient clearance for your plugs, which stick out about 2" (approx. 5 cm) for me. I don't have anything plugged into the coax, but I assume that will need decent clearance as well in order to avoid a sharp crimp in your cable.I've uploaded some pictures of the available jacks so that people know what's there -- it's a genuine headphone jack, not just a 3.5 mm audio out jack, which may be a line out that does not change volume with the TV volume. These are the inexpensive speakers I'm using with this TV: GPX HT12B 2.1 Channel Home Theater Speaker System (Black,3)