Like most Blu-ray HTIBs, the SC-BT300's connectivity is limited to audio inputs; there are no video inputs. That means with additional components, like a cable box or game console, you'll need to make separate connections to the SC-BT300 and your TV, plus you'll have to fumble with several remotes to get it all working. (Alternatively, you can avoid some of the hassle with a quality universal remote
.) While most Blu-ray HTIBs don't have video inputs, it's worth mentioning that the LG LHB977
(street price of less than $600) and Samsung HT-BD3252
($800 list price) each have two HDMI inputs, so they might be a better choice if you have other HDMI gear, such as game consoles and DVRs.
The SC-BT300 has two optical digital-audio inputs and one analog stereo input, which is about average compared with other systems. Panasonic allows you to select each of these inputs by continually pressing the "EXT-IN" button, which means you can connect a total of three separate components to the SC-BT300.