SONY Model number sample
Sony KDL-40EX640
KDL: Display type/product category. LCD in this case, though you'll also see XBR for the high-end. "VPL" is its front projector prefix.
40: Size
EX: Series. Right now EX, BX, and HX.
640: Generally, year. For example, the HX929 is the 2011 model, the HX950 is the 2012 model. Due to carry-overs and other factors, this isn't a steadfast rule. Also, different models get released at different times during the year, so there's no easy "5" means 20XX or anything.
SONY TV Models
KDL-19M4000
KDL-22BX300
KDL-22BX320
KDL-22EX308
KDL-22L4000
KDL-22L5000
KDL-23S2000
KDL-23S2010
KDL-26L5000
KDL-26M3000
KDL-26M4000
KDL-26ML130
KDL-26N4000
KDL-26NL140
KDL-26S2000
KDL-26S2010
KDL-26S3000
KDL-32BX300
KDL-32BX310
KDL-32BX320
KDL-32BX330
KDL-32BX420
KDL-32BX421
KDL-32EX301
KDL-32EX308
KDL-32EX340
KDL-32EX400
KDL-32EX40B
KDL-32EX500
KDL-32EX520
KDL-32EX521
KDL-32EX523
KDL-32EX600
KDL-32EX700
KDL-32EX710
KDL-32EX720
KDL-32EX729
KDL-32L4000
KDL-32L5000
KDL-32L504
KDL-32LL150
KDL-32M3000
KDL-32M4000
KDL-32ML130
KDL-32N4000
KDL-32NL140
KDL-32R300B
KDL-32R300C
KDL-32R330B
KDL-32R400A
KDL-32R420B
KDL-32R500C
KDL-32S2000
KDL-32S2010
KDL-32S2400
KDL-32S3000
KDL-32S5100
KDL-32SL130
KDL-32VL140
KDL-32W600D
KDL-32W650A
KDL-32XBR4
KDL-32XBR6
KDL-32XBR9
KDL-32XBR950
KDL-37L4000
KDL-37L5000
KDL-37M3000
KDL-37M4000
KDL-37N4000
KDL-37NL140
KDL-37XBR6
KDL-40BX420
KDL-40BX421
KDL-40BX450
KDL-40EX400
KDL-40EX401
KDL-40EX40B
KDL-40EX500
KDL-40EX501
KDL-40EX520
KDL-40EX521
KDL-40EX523
KDL-40EX600
KDL-40EX620
KDL-40EX621
KDL-40EX640
KDL-40EX700
KDL-40EX710
KDL-40EX720
KDL-40EX723
KDL-40EX729
KDL-40HX701
KDL-40HX800
KDL-40NX700
KDL-40NX711
KDL-40R350B
KDL-40R350D
KDL-40R380B
KDL-40R450A
KDL-40R510C
KDL-40S2000
KDL-40S2010
KDL-40S20L1
KDL-40S2400
KDL-40S3000
KDL-40S4100
KDL-40S504
KDL-40S5100
KDL-40SL130
KDL-40SL140
KDL-40SL150
KDL-40V2500
KDL-40V3000
KDL-40V4100
KDL-40V4150
KDL-40V5100
KDL-40VE5
KDL-40VL130
KDL-40VL160
KDL-40W3000
KDL-40W4100
KDL-40W5100
KDL-40W580B
KDL-40W590B
KDL-40W600B
KDL-40W650D
KDL-40WL135
KDL-40WL140
KDL-40XBR2
KDL-40XBR3
KDL-40XBR4
KDL-40XBR5
KDL-40XBR6
KDL-40XBR7
KDL-40XBR9
KDL-40Z4100
KDL-40Z5100
KDL-42EX440
KDL-42V4100
KDL-42XBR950
KDL-46BX420
KDL-46BX421
KDL-46BX450
KDL-46EX400
KDL-46EX500
KDL-46EX501
KDL-46EX520
KDL-46EX521
KDL-46EX523
KDL-46EX600
KDL-46EX620
KDL-46EX621
KDL-46EX640
KDL-46EX645
KDL-46EX700
KDL-46EX701
KDL-46EX710
KDL-46EX711
KDL-46EX720
KDL-46EX723
KDL-46EX729
KDL-46HX701
KDL-46HX729
KDL-46HX750
KDL-46HX800
KDL-46HX820
KDL-46HX850
KDL-46NX700
KDL-46NX711
KDL-46NX720
KDL-46NX800
KDL-46NX810
KDL-46R453A
KDL-46S2000
KDL-46S2010
KDL-46S3000
KDL-46S4100
KDL-46S504
KDL-46S5100
KDL-46SL140
KDL-46V2500
KDL-46V25L1
KDL-46V3000
KDL-46V4100
KDL-46V5100
KDL-46VE5
KDL-46VL130
KDL-46VL150
KDL-46VL160
KDL-46W3000
KDL-46W4100
KDL-46W4150
KDL-46W5100
KDL-46W5150
KDL-46WL135
KDL-46WL140
KDL-46XBR10
KDL-46XBR2
KDL-46XBR3
KDL-46XBR4
KDL-46XBR5
KDL-46XBR6
KDL-46XBR8
KDL-46XBR9
KDL-46Z4100
KDL-46Z5100
KDL-47W802A
KDL-48R470B
KDL-48R510C
KDL-48R550C
KDL-48W580B
KDL-48W590B
KDL-48W600B
KDL-48W650D
KDL-50EX645
KDL-50R450A
KDL-50R550A
KDL-50W700B
KDL-50W800B
KDL-50W800C
KDL-52EX700
KDL-52EX701
KDL-52NX800
KDL-52S4100
KDL-52S5100
KDL-52V4100
KDL-52V5100
KDL-52VE5
KDL-52VL150
KDL-52W3000
KDL-52W4100
KDL-52W5100
KDL-52W5150
KDL-52WL130
KDL-52WL135
KDL-52WL140
KDL-52XBR10
KDL-52XBR2
KDL-52XBR3
KDL-52XBR4
KDL-52XBR5
KDL-52XBR6
KDL-52XBR7
KDL-52XBR9
KDL-52Z5100
KDL-55BX520
KDL-55EX500
KDL-55EX501
KDL-55EX620
KDL-55EX621
KDL-55EX640
KDL-55EX710
KDL-55EX711
KDL-55EX720
KDL-55EX723
KDL-55HX701
KDL-55HX729
KDL-55HX750
KDL-55HX751
KDL-55HX800
KDL-55HX820
KDL-55HX850
KDL-55NX720
KDL-55NX810
KDL-55V5100
KDL-55W700B
KDL-55W800B
KDL-55W800C
KDL-55W802A
KDL-55W900A
KDL-55W950B
KDL-55XBR8
KDL-60EX500
KDL-60EX645
KDL-60EX700
KDL-60EX701
KDL-60EX720
KDL-60EX723
KDL-60NX720
KDL-60NX800
KDL-60NX801
KDL-60NX810
KDL-60R510A
KDL-60R520A
KDL-60R550A
KDL-60W580B
KDL-60W590B
KDL-60W600B
KDL-60W610B
KDL-60W630B
KDL-60W840B
KDL-60W850B
KDL-65HX729
KDL-65S990A
KDL-65W5100
KDL-65W850A
KDL-65W850C
KDL-65W950B
KDL-70R520A
KDL-70R550A
KDL-70W830B
KDL-70W840B
KDL-70W850B
KDL-70X830B
KDL-70XBR3
KDL-70XBR7
KDL-75W850C
KDL-V26XBR1
KDL-V32XBR1
KDL-V32XBR2
KDL-V40XBR1
KLV-15SR1
KLV-21SG2
KLV-21SR2
KLV-23HR1
KLV-23HR2
KLV-23M1
KLV-26HG2
KLV-30XBR900
KLV-32M1
KLV-32U100M
KLV-40U100M
KLV-40ZX1M
KLV-S15G10
KLV-S19A10
KLV-S20G10
KLV-S23A10
KLV-S26A10
KLV-S32A10
KLV-S40A10
LDM-3000
LDM-3210
LDM-4210
XBR-46HX909
XBR-46HX929
XBR-52HX909
XBR-52LX900
XBR-55HX929
XBR-55HX950
XBR-60LX900
XBR-65HX929
XBR-65HX950