It depends on your TV's available inputs. If your TV has an HDMI port, you'll get the audio and HD video to your set with one cable if you invest in an HDMI cable; purchase the cable online (you don't need to pay $$$$ for the cable). Stores that specialize in cables will have the best picture. Press the HDMI select button on your remote to go through the resolution options for the DVD player. (see page 14 of the manual
If your TV doesn't have an HDMI port, check for component video. This will also give an HD picture to the TV. You'll need cables for the 2 RCA audio and 3 RCA (Red, blue, green) video plugs (or one cable with 5 RCA plugs) on each end of the cable. The mega-cables though can be a bit more difficult to plug in. Make sure that the colors match. (Some TVs use an adapter that consolidate the cable connection at the TV. You still need to match the colors at the adapter.)
If your TV only has composite in, you'll have an SD signal at the TV. This is the cable with one RCA plug (yellow) for video and the 2 RCA plugs (red and white) for audio. This cable is often included with the DVD player.
If your TV only has a coax connection (OTA tuner or analog cable), you'll need a Composite to RF converter. These used to be available at Radio Shack and can still be found online as well.
If some countries, the TV might have a SCART port. You can find a composite to SCART adapter.
The manual is available from Toshiba here: http://support.toshiba.com/support/modelHome?freeText=2805086
. Select the Manuals and Specs tab. The file is a PDF; so you will need Adobe Reader or a similar program to read the file.
I hope this helps. If you need additional assistance, please add a comment with details of your TV.
(if your TV has an SD (480i) resolution, you probably only have the composite and coax inputs.)