Dave Allen was great.

My folks had (and probably still have) the recording of the concert that was held to raise money for the victims of Cyclone Tracy. There was a segment with Paul Hogan (at least a decade before Crocodile Dundee) doing standup...loved it. He still had stuff left in his repoitoire back then.

ETA Estimated Time of Arrival (also seen as ETOA)
ETA Employment and Training Administration (US Department of Labor)
ETA Euskadi Ta Askatasuna (Basque Homeland and Liberty; terrorist group in Spain)
ETA Electronic Travel Authority
ETA Edited to Add
ETA Environmental Transport Association (UK)
ETA Electronics Technicians Association (Greencastle, IN)
ETA Electronic Transactions Association
ETA European Technical Approval
ETA English Teachers Association
ETA Expected Time of Arrival
ETA Electronic Tax Administration
ETA Elvis Tribute Artist
ETA Electronic Transfer Account
ETA Event Tree Analysis
ETA Evangelical Training Association
ETA Eu Te Amo (Portuguese: I Love You)
ETA European Thyroid Association
ETA Effective Tax Administration
ETA Egyptian Tourist Authority
ETA Electronic Travel Aid
ETA Electronic Transportation Acquisition
ETA Entertainment Technology Alliance
ETA Embroidery Trade Association
ETA Executive Travel Associates
ETA Extension Travel Adjustment (Marzocchi bicycle forks)
ETA Energy Tax Act
ETA Estimated Transmitting Ability (cow breeding)
ETA Elektrotechnische Apparate GmbH (Nuremburg, Germany)
ETA European Tugowners' Association
ETA Evangelische Theologische Academie (Dutch: Evangelical Theological Academy; Netherlands)
ETA Exact Time of Arrival
ETA Eesti Teadeteagentuur (Estonian News Agency)
ETA Embedded Transport Acceleration (Intel)
ETA Experimental Test Accelerator
ETA Experience the Adventure
ETA Energy Technology Assessment
ETA Extraterrestrial Activity
ETA Elgin Teachers Association
ETA Event Tracking Agent
EtA Eternal Allegiance (fan site)
ETA External Tank Attachment
ETA Extraterrestrial Artifact
ETA Engineering Technologies Associates
ETA Emergency Tire Assistance
ETA Engineering Technologies Academy
ETA Engineering Technical Assistant
ETA Eelam Tamil Association (Sydney, Australia)
ETA Emergency Towing Arrangement (requirement at forward & aft ends of oil tanker)
ETA Electronic Test Automation
ETA Etnoteam Adriatica
ETA Estimated Time Available
ETA E-Sektionens Teletekniska Avdelning
ETA Electronic Target Acquisition (also sometimes abbreviated as E/TA)
ETA Engineering Test Article
ETA Eastern Training Area
ETA Emergency Transport Attendant
ETA Enterprise Transaction Archive
ETA Ellenville Teachers Association
ETA Erosion Transport Accumulation
ETA Estimated Time for Accomplishment
ETA Engineering Task Assignment
ETA Exception Time Accounting
ETA Electro-Thermal Atomizer
ETA European Tropospheric-Scatter Army (communications system)
ETA Earthville Travel Adventures
ETA Evan Terry Associates, PC (Birmingham, AL)
ETA External Tank Attack
ETA Electronics Test Area
ETA EOOW Training Assistant
ETA Enterprise Transaction Analysis
ETA Estimated Time Allocation (project management)
ETA Extra Terrestrial Alien
ETA Easy Tech Answers (Lansing, MI)
ETA Educational Therapy Assistant
ETA Executive Trade Associates
ETA Estaciones de Tiempo Automatizadas (Spanish: Automated Weather Stations)

eta: edited to add!

You should add that here. :D

7th letter of the Greek alphabet