A:AnswerThe last firmware update (firmware version BD.24065.60420.C) for the LG Blu-ray Disc™ Player with Streaming Services and Built-in Wi-Fi®, Model # BP350 was released on 05/28/2016. Regrettably, we do not have release notes for what was included in that firmware. You can contact our Support Center at (800) 243-0000 to ask about the release notes and the firmware update can be downloaded from the support page for the BD350 on the company site. If you are connected to a broadband home network, if there is a new software available, the player will inform you about the update. An "Update" icon appears in the Home menu and pressing the blue (B) colored button on the remote will start the update procedure. Before updating the player, be sure to remove any USB devices that you have connected to the unit and remove any disc...^IFV
A:AnswerThe Blu-ray Disc™ Player with Streaming Services and Built-in Wi-Fi, Model # BP350 only has an HDMI® Out for connecting to compatible TVs. Analog TVs do not have HDMI® ports on them so you cannot connect them to the Blu-ray Player...^IFV
A:AnswerThe LGDVT418 was a theatre system. The electronics piece that came with that set consisted of two parts (integrated into a single box): a DVD player and a receiver. A "receiver" is composed of three parts: a tuner (to pick up radio signals), a pre-amp (that switches between the desired inputs, i.e., DVD sound, AM radio, FM radio, a tape recorder (remember those?), etc.), and an amplifier (which makes the sound "louder," for playback through the speakers).
This DVD player could replace the DVD portion of the 418's electronics piece. To get the receiver functions, you need to buy a receiver. You can't use the receiver portion of the 418 because it only has what are known as RCA or digital audio inputs, and the DVD player you're asking about only has HDMI outputs. The receiver you need to purchase needs to have HDMI inputs.
You can't hook the speakers directly into the DVD player (which I think is a later question you ask). The speakers are connected to the receiver, and the DVD player is also connected to the receiver. You may not be able to use the speakers that came with the 418. They have a resistance that is lower than normal and could damage the new receiver. Consult with your salesman to determine if the 418 speakers are capable of being used with it.