Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Toshiba 20AF44 20" FST Pure Flat Color TV with Stereo Sound
Product description: This Toshiba 20" Flat Stereo TV features an FST PURE flat tube that eliminates unwanted reflections from ambient light better than conventional tubes. Color reproduction is enhanced thanks to the 20AF44's nickel-alloy construction Invar Shadow Mask. Features: 3-line digital comb filter with vertical contour correction; MTS stereo with dbx; double baffle speaker system; StableSound; tri-lingual OSD (English, French, Spanish); ColorStream component video input; front panel A/V input for easy connection of video games or a camcorder; sleep timer; channel lock; and video lock., Note: Toshiba 20AF44 20" FST PURE Flat-Screen TV is no longer being manufactured. You may want to consider purchasing the newer Toshiba 20AF45 20 inch FST Pure TV (Silver) instead., Enliven your kitchen, bedroom, or living room with Toshiba's stylish, 20-inch 20AF44. The compact but versatile set is equipped to deliver vivid, high-contrast pictures via the FST PURE flat picture tube, which looks great and minimizes geometric distortions in the process. Generous connection options and parental controls let you and your kids use the set for a variety of applications. The 20AF44's three-line digital comb filter further enhances resolution by removing blurred edges between colors and reducing dot crawl (tiny, moving dots of color along a sharp color separation in a vertical line, as in a depiction of a character's striped T-shirt). Meanwhile, velocity-scan modulation improves the definition at picture edges, creating sharper images by slowing the CRT (cathode-ray tube) beam's horizontal scanning during demanding work--say, when rendering transitions from light to dark parts of an image--and speeding it up when scanning easily rendered sections, like broad dark areas. A shadow mask is a thin sheet of perforated metal behind the screen that restricts electron flow, each hole in the sheet corresponding to a single pixel. An Invar mask uses an alloy that's especially resistant to the high temperatures generated by the electron beam, allowing in a brighter, clearer picture. The set receives stereo audio programming and SAP (second audio program), often used to broadcast an alternate-language track. The 20AF44 derives a heightened sense of stereo separation from its double-baffle speaker system, and BBE High-Definition Sound improves speech intelligibility and restores the dynamic range of compressed musical passages. A ColorStream component-video input provides the ultimate picture quality from interlaced component-video signals; standard composite-video inputs accommodate all DVD players and most other video sources. You get two sets of rear A/V inputs (one of which has S-video) as well as one set of front A/V inputs for easy connection with a camcorder or gaming console. A rear A/V output lets you hook the set up with a surround receiver. The 20AF44 also features V-Chip parental controls, a sleep timer, and a glow-in-the-dark universal remote control. What's in the Box Television, remote control, remote batteries, a user's manual, and warranty information.
Product feature: 20-inch CRT TV with standard 4:3 aspect ratio and high-contrast, low-distortion FST PURE flat tube; 24 x 18 x 19 inches (W x H x D), 3-line digital comb filter enhances color clarity; velocity scan modulation improves definition at screen edges, Stereo reception with SAP, double-baffle speaker system; StableSound evens the audio from TV programs, ColorStream component-video input offers optimal connection from a compatible DVD player or satellite receiver, Front A/V input accommodates camcorder or gaming console; headphone jack; 1-year parts warranty (90 days labor)
Product brand: Toshiba
Target attributes: Refresh Rate
Answer: attribute: refresh rate
value: None
source: None