TVN and DOTRES brings up different fare basis - see below
DOT Res brings up the 10 day AP T sale fares
TVN brings up a Friday special L fare
I usually do not see such differances in fare basis
Any ideas why the major display differance?

[KVS Availability Tool 5.0.1/Platinum - Sabre: Fares/TVN/CA]

BOS Boston Logan Int'l MA US [KBOS]
ATL Atlanta William B Hartsfield GA US [KATL]
R/T Jul-Jun

Carrier From To Fare Cur AdvanceP Min Max Fare Basis/TD | Travel Period
DL BOS ATL 137 USD *** TA0WK0W5 17 Jul-21 Jul
DL BOS ATL 262 USD 21 Days UA21A0NJ
DL BOS ATL 321 USD *** LA00K3SJ -17 Aug
DL BOS ATL 321 USD 21 Days LA21A0UJ
DL BOS ATL 358 USD 14 Days KA14A0NJ
DL BOS ATL 485 USD 7 Days QA07A0NJ
DL BOS ATL 650 USD 3 Days HA03A0NJ
DL BOS ATL 718 USD *** MA00A0NJ
DL BOS ATL 852 USD *** MA00UPRJ
DL BOS ATL 1047 USD *** BA00A0UJ
DL BOS ATL 1715 USD *** Y0
DL BOS ATL 1812 USD *** YUP
DL BOS ATL 1908 USD *** F0
DL BOS ATL 2126 USD *** Y
DL BOS ATL 2457 USD *** C
DL BOS ATL 3072 USD ***


[KVS Availability Tool 5.0.1/Platinum - Sabre: Fares/DotRes/US]

BOS Boston Logan Int'l MA US [KBOS]
ATL Atlanta William B Hartsfield GA US [KATL]
TUE 21 Jul 2009 | THU 01 Oct 2009 | R/T | Economy

Carrier From To Fare Cur Fare Basis
DL BOS ATL 138 USD TA10X3SJ
DL BOS ATL 198 USD TA10H3SJ
DL BOS ATL 268 USD UA21A0NJ
DL BOS ATL 328 USD LA21A0UJ
DL BOS ATL 368 USD KA14A0NJ
DL BOS ATL 498 USD QA07A0NJ
DL BOS ATL 668 USD HA03A0NJ
DL BOS ATL 738 USD MA00A0NJ
DL BOS ATL 876 USD MA00UPRJ
DL BOS ATL 1078 USD BA00A0UJ
DL BOS ATL 1768 USD Y0
DL BOS ATL 1868 USD YUP
DL BOS ATL 2192 USD Y